Index (DJUTILS math utilities 2.4.2 API)

A C D E G H I K L M N O P Q R S T U V Z
All Classes and Interfaces|All Packages|Constant Field Values

A

AbstractMean<MT,V extends Number,W extends Number> - Class in org.djutils.math.means: Methods and fields common to all implementations of Mean.
AbstractMean() - Constructor for class org.djutils.math.means.AbstractMean: Constructor.
acos(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse cosine function of a Complex operand.
acosh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse hyperbolic cosine of a Complex operand.
add(Iterable<V>) - Method in class org.djutils.math.means.AbstractMean: Add values with weight 1.
add(Iterable<V>, Iterable<W>) - Method in class org.djutils.math.means.AbstractMean: Adds weighted values.
add(Collection<S>, Function<S, V>, Function<S, W>) - Method in class org.djutils.math.means.AbstractMean: Adds each value (obtained by calling the values function on each object in a Collection) with a weight (obtained by calling the weights function on the same object from the Collection).
add(Collection<V>, Function<V, W>) - Method in class org.djutils.math.means.AbstractMean: Adds each value with a weight obtained by calling the provided weights function.
add(Map<V, W>) - Method in class org.djutils.math.means.AbstractMean: Adds each key value from a map weighted with the mapped to value.
add(V) - Method in class org.djutils.math.means.AbstractMean: Add a value with weight 1.
add(V[]) - Method in class org.djutils.math.means.AbstractMean: Add values with weight 1.
add(V[], W[]) - Method in class org.djutils.math.means.AbstractMean: Adds weighted values.
add(V, W) - Method in class org.djutils.math.means.AbstractMean: Adds a value with weight.
addImpl(V, Number) - Method in class org.djutils.math.means.AbstractMean: Adds a value with weight.
addImpl(V, Number) - Method in class org.djutils.math.means.ArithmeticMean
addImpl(V, Number) - Method in class org.djutils.math.means.GeometricMean
addImpl(V, Number) - Method in class org.djutils.math.means.HarmonicMean
AngleUtil - Class in org.djutils.math: AngleUtil has some base methods to deal with angles, such as normalization between -PI and PI, and between 0 and 2*PI.
apply(Double) - Method in class org.djutils.math.functions.ArcSine
apply(Double) - Method in class org.djutils.math.functions.ArcTangent
apply(Double) - Method in class org.djutils.math.functions.Concatenation
apply(Double) - Method in class org.djutils.math.functions.Constant
apply(Double) - Method in class org.djutils.math.functions.Exponential
apply(Double) - Method in class org.djutils.math.functions.Logarithm
apply(Double) - Method in class org.djutils.math.functions.Nan
apply(Double) - Method in class org.djutils.math.functions.Power
apply(Double) - Method in class org.djutils.math.functions.Product
apply(Double) - Method in class org.djutils.math.functions.Quotient
apply(Double) - Method in class org.djutils.math.functions.Sine
apply(Double) - Method in class org.djutils.math.functions.Sum
arcCosine(MathFunction, double) - Static method in class org.djutils.math.functions.ArcSine: Construct an arc cosine function using the equation acos(x) === π/2-asin(x).
ArcSine - Class in org.djutils.math.functions: ArcSine function.
ArcSine() - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function with omega equal to 1.0, no shift and no chained MathFunction.
ArcSine(double) - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function with no shift and no chained MathFunction.
ArcSine(double, double) - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function with shift and no chained MathFunction.
ArcSine(MathFunction) - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function with omega equal to 1.0 and no shift.
ArcSine(MathFunction, double) - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function with shift equal to 0.0.
ArcSine(MathFunction, double, double) - Constructor for class org.djutils.math.functions.ArcSine: Construct a new ArcSine function.
ArcTangent - Class in org.djutils.math.functions: ArcTangent.java.
ArcTangent() - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function with omega equal to 1.0, no shift and no chained MathFunction.
ArcTangent(double) - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function with no shift and no chained MathFunction.
ArcTangent(double, double) - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function with shift and no chained MathFunction.
ArcTangent(MathFunction) - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function with omega equal to 1.0 and no shift.
ArcTangent(MathFunction, double) - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function with shift equal to 0.0.
ArcTangent(MathFunction, double, double) - Constructor for class org.djutils.math.functions.ArcTangent: Construct a new ArcTangent function.
ArithmeticMean<V extends Number,W extends Number> - Class in org.djutils.math.means: Compute arithmetic (weighted) mean of a set of values.
ArithmeticMean() - Constructor for class org.djutils.math.means.ArithmeticMean
asin(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse sine function of a Complex operand.
asinh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse hyperbolic sine of a Complex operand.
atan(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse tangent function of a Complex operand.
atanh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Inverse hyperbolic tangent of a Complex operand.

C

cbrt(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Principal cube root of a Complex operand.
combineWith(KnotReport) - Method in enum class org.djutils.math.functions.KnotReport: Combine two KnotReports and return the combined knowledge.
compareChains(MathFunction, MathFunction) - Method in interface org.djutils.math.functions.MathFunction: Compare chains for sorting.
compareTo(Interval<T>) - Method in record class org.djutils.math.functions.Interval
compareTo(MathFunction) - Method in interface org.djutils.math.functions.MathFunction
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.ArcSine
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.ArcTangent
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Concatenation
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Constant
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Exponential
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Logarithm
compareWithinSubType(MathFunction) - Method in interface org.djutils.math.functions.MathFunction: Determine sorting order among instances of a particular sub type of MathFunction.
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Nan
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Power
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Product
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Quotient
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Sine
compareWithinSubType(MathFunction) - Method in class org.djutils.math.functions.Sum
Complex - Class in org.djutils.math.complex: Complex.java.
Complex(double) - Constructor for class org.djutils.math.complex.Complex: Construct a new complex number with specified real component and zero imaginary component.
Complex(double, double) - Constructor for class org.djutils.math.complex.Complex: Construct a new complex number.
ComplexMath - Class in org.djutils.math.complex: ComplexMath.java.
Concatenation - Class in org.djutils.math.functions: Concatenate FunctionInterface objects
Concatenation(SortedSet<Interval<MathFunction>>) - Constructor for class org.djutils.math.functions.Concatenation: Construct a Concatenation from a sorted set of Interval<MathFunction>.
Concatenation(Interval<MathFunction>...) - Constructor for class org.djutils.math.functions.Concatenation: Construct the concatenation of one or more MathFunction objects.
Concatenation.Discontinuity - Enum Class in org.djutils.math.functions: The various discontinuities reported by the discontinuities method.
conjugate() - Method in class org.djutils.math.complex.Complex: Construct the complex conjugate of this Complex.
Constant - Class in org.djutils.math.functions: Constant value function; f(x) → c where c ∈ ℝ.
Constant(double) - Constructor for class org.djutils.math.functions.Constant: Create a new constant value function F(x).
continuousPiecewiseLinear(double...) - Static method in class org.djutils.math.functions.Concatenation: Construct a concatenation that is piecewise linear through a given set of input-output pairs.
continuousPiecewiseLinear(SortedMap<Double, Double>) - Static method in class org.djutils.math.functions.Concatenation: Construct a concatenation that is piecewise linear through a given set of points.
cos(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Cosine function of Complex operand.
cosh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Hyperbolic cosine function of Complex operand.
cosine(double, double, double) - Static method in class org.djutils.math.functions.Sine: Construct a cosine function factor * cos(omega * x + shift).
covers(double) - Method in record class org.djutils.math.functions.Interval: Check if a value falls on this Interval.
covers(Interval<?>) - Method in record class org.djutils.math.functions.Interval: Check if this Interval completely covers some other Interval.
cubicRoots(double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRoots(double, double, double, boolean) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRoots(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRootsAberthEhrlich(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRootsCardano(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRootsDurandKerner(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: CUBIC POLYNOMIAL ROOT SOLVER.
cubicRootsNewtonFactor(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: CUBIC POLYNOMIAL ROOT SOLVER.

D

discontinuities(Interval<?>) - Method in class org.djutils.math.functions.Concatenation: Report all non-continuities and all points where this function is non differentiable, or non-evaluable.
DISCONTINUOUS - Enum constant in enum class org.djutils.math.functions.Concatenation.Discontinuity: Not continuous (and, therefore, not differentiable).
disjunct(Interval<?>) - Method in record class org.djutils.math.functions.Interval: Check if this Interval is completely disjunct of some other Interval.
divideBy(double) - Method in class org.djutils.math.complex.Complex: Divide this Complex by a scalar.
divideBy(Complex) - Method in class org.djutils.math.complex.Complex: Divide this Complex by another Complex.

E

epsilonEquals(double, double, double) - Static method in class org.djutils.math.AngleUtil: Return whether two angles (in radians) are less than epsilon apart.
equals(Object) - Method in class org.djutils.math.complex.Complex
equals(Object) - Method in class org.djutils.math.functions.ArcSine
equals(Object) - Method in class org.djutils.math.functions.ArcTangent
equals(Object) - Method in class org.djutils.math.functions.Concatenation
equals(Object) - Method in class org.djutils.math.functions.Constant
equals(Object) - Method in class org.djutils.math.functions.Exponential
equals(Object) - Method in record class org.djutils.math.functions.Interval: Indicates whether some other object is "equal to" this one.
equals(Object) - Method in class org.djutils.math.functions.Logarithm
equals(Object) - Method in record class org.djutils.math.functions.MathFunction.TupleSt: Indicates whether some other object is "equal to" this one.
equals(Object) - Method in class org.djutils.math.functions.Power
equals(Object) - Method in class org.djutils.math.functions.Product
equals(Object) - Method in class org.djutils.math.functions.Quotient
equals(Object) - Method in class org.djutils.math.functions.Sine
equals(Object) - Method in class org.djutils.math.functions.Sum
exp(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Exponential function of a Complex operand.
Exponential - Class in org.djutils.math.functions: Exponential function.
Exponential() - Constructor for class org.djutils.math.functions.Exponential: Construct the e^x function.
Exponential(double) - Constructor for class org.djutils.math.functions.Exponential: Construct a new Exponential.
Exponential(MathFunction) - Constructor for class org.djutils.math.functions.Exponential: Construct a new Exponential of a MathFunction.
Exponential(MathFunction, double) - Constructor for class org.djutils.math.functions.Exponential: Construct a new Exponential of a MathFunction.

G

GAP - Enum constant in enum class org.djutils.math.functions.Concatenation.Discontinuity: Function undefined in this interval; the MathFunction will yield NaN in this interval.
GeometricMean<V extends Number,W extends Number> - Class in org.djutils.math.means: Compute the geometric (weighted) mean of a set of values.
GeometricMean() - Constructor for class org.djutils.math.means.GeometricMean
getDerivative() - Method in class org.djutils.math.functions.ArcSine
getDerivative() - Method in class org.djutils.math.functions.ArcTangent
getDerivative() - Method in class org.djutils.math.functions.Concatenation
getDerivative() - Method in class org.djutils.math.functions.Constant
getDerivative() - Method in class org.djutils.math.functions.Exponential
getDerivative() - Method in class org.djutils.math.functions.Logarithm
getDerivative() - Method in interface org.djutils.math.functions.MathFunction: Returns the derivative of the data with respect to fractional length.
getDerivative() - Method in class org.djutils.math.functions.Nan
getDerivative() - Method in class org.djutils.math.functions.Power
getDerivative() - Method in class org.djutils.math.functions.Product
getDerivative() - Method in class org.djutils.math.functions.Quotient
getDerivative() - Method in class org.djutils.math.functions.Sine
getDerivative() - Method in class org.djutils.math.functions.Sum
getIm() - Method in class org.djutils.math.complex.Complex: Retrieve the imaginary component of this complex number.
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.ArcSine
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.ArcTangent
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Concatenation
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Constant
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Exponential
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Logarithm
getKnotReport(Interval<?>) - Method in interface org.djutils.math.functions.MathFunction: Report what is known about knots of this MathFunction in some Interval.
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Nan
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Power
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Product
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Quotient
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Sine
getKnotReport(Interval<?>) - Method in class org.djutils.math.functions.Sum
getKnots(Interval<?>) - Method in class org.djutils.math.functions.ArcSine
getKnots(Interval<?>) - Method in class org.djutils.math.functions.ArcTangent
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Concatenation
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Constant
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Exponential
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Logarithm
getKnots(Interval<?>) - Method in interface org.djutils.math.functions.MathFunction: Report all knots of this MathFunction in some Interval.
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Nan
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Power
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Product
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Quotient
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Sine
getKnots(Interval<?>) - Method in class org.djutils.math.functions.Sum
getMean() - Method in class org.djutils.math.means.AbstractMean: Returns the weighted mean of accumulated data.
getMean() - Method in class org.djutils.math.means.ArithmeticMean
getMean() - Method in class org.djutils.math.means.GeometricMean
getMean() - Method in class org.djutils.math.means.HarmonicMean
getRe() - Method in class org.djutils.math.complex.Complex: Retrieve the real component of this complex number.
getScale() - Method in class org.djutils.math.functions.ArcSine
getScale() - Method in class org.djutils.math.functions.ArcTangent
getScale() - Method in class org.djutils.math.functions.Constant
getScale() - Method in interface org.djutils.math.functions.MathFunction: Get the scale factor of this MathFunction.
getScale() - Method in class org.djutils.math.functions.Power
getScale() - Method in class org.djutils.math.functions.Sine
getSum() - Method in class org.djutils.math.means.AbstractMean: Returns the weighted sum of available data.
getSumOfWeights() - Method in class org.djutils.math.means.AbstractMean: Returns the sum of the weights.

H

HarmonicMean<V extends Number,W extends Number> - Class in org.djutils.math.means: Compute the harmonic (weighted) mean of a set of values.
HarmonicMean() - Constructor for class org.djutils.math.means.HarmonicMean
hashCode() - Method in class org.djutils.math.complex.Complex
hashCode() - Method in class org.djutils.math.functions.ArcSine
hashCode() - Method in class org.djutils.math.functions.ArcTangent
hashCode() - Method in class org.djutils.math.functions.Concatenation
hashCode() - Method in class org.djutils.math.functions.Constant
hashCode() - Method in class org.djutils.math.functions.Exponential
hashCode() - Method in record class org.djutils.math.functions.Interval: Returns a hash code value for this object.
hashCode() - Method in class org.djutils.math.functions.Logarithm
hashCode() - Method in record class org.djutils.math.functions.MathFunction.TupleSt: Returns a hash code value for this object.
hashCode() - Method in class org.djutils.math.functions.Power
hashCode() - Method in class org.djutils.math.functions.Product
hashCode() - Method in class org.djutils.math.functions.Quotient
hashCode() - Method in class org.djutils.math.functions.Sine
hashCode() - Method in class org.djutils.math.functions.Sum
high() - Method in record class org.djutils.math.functions.Interval: Returns the value of the high record component.
highInclusive() - Method in record class org.djutils.math.functions.Interval: Returns the value of the highInclusive record component.
hypot(double, double) - Static method in class org.djutils.math.complex.Complex: Better implementation of the hypotenuse function (faster and more accurate than the one in the java Math library).

I

I - Static variable in class org.djutils.math.complex.Complex: The imaginary unit value (i).
im - Variable in class org.djutils.math.complex.Complex: Imaginary component.
increment(double, double) - Method in class org.djutils.math.means.AbstractMean: Accumulate some data.
interpolateClockwise(double, double, double) - Static method in class org.djutils.math.AngleUtil: Interpolate between two angles that will first be normalized between 0 and 2π, and take the interpolated angle when going clockwise from the first angle to the second angle.
interpolateShortest(double, double, double) - Static method in class org.djutils.math.AngleUtil: Interpolate between two angles taking the shortest way.
intersection(Interval<?>) - Method in record class org.djutils.math.functions.Interval: Compute the intersection of this Interval and some other Interval.
Interval<T extends Comparable<T>> - Record Class in org.djutils.math.functions: Immutable double interval, optionally including none, one, or both boundary values.
Interval(double, boolean, double, boolean, T) - Constructor for record class org.djutils.math.functions.Interval: Construct a new Interval.
isFinite() - Method in enum class org.djutils.math.functions.KnotReport: Report if the number of knots is finite.
isImaginary() - Method in class org.djutils.math.complex.Complex: Determine if this Complex has a real component of zero.
isReal() - Method in class org.djutils.math.complex.Complex: Determine if this Complex has an imaginary component of zero.

K

KNOT - Enum constant in enum class org.djutils.math.functions.Concatenation.Discontinuity: Continuous, but not differentiable.
KnotReport - Enum Class in org.djutils.math.functions: Knowledge about knots (discontinuities) of a MathFunction in some interval.
KNOWN_FINITE - Enum constant in enum class org.djutils.math.functions.KnotReport: There are a limited number of knots in the interval.
KNOWN_INFINITE - Enum constant in enum class org.djutils.math.functions.KnotReport: There are infinitely many knots in the interval.

L

linearRoots(double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: LINEAR POLYNOMIAL ROOT SOLVER.
linearRoots(double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: LINEAR POLYNOMIAL ROOT SOLVER.
linearRoots(double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: LINEAR POLYNOMIAL ROOT SOLVER.
linearRoots(double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: LINEAR POLYNOMIAL ROOT SOLVER.
ln(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Principal value of the natural logarithm of a Complex operand.
Logarithm - Class in org.djutils.math.functions: Logarithms.
Logarithm() - Constructor for class org.djutils.math.functions.Logarithm: Natural logarithm; logarithm with base e.
Logarithm(double) - Constructor for class org.djutils.math.functions.Logarithm: Logarithm with user specified base.
Logarithm(MathFunction) - Constructor for class org.djutils.math.functions.Logarithm: Natural logarithm of chained MathFunction.
Logarithm(MathFunction, double) - Constructor for class org.djutils.math.functions.Logarithm: Logarithm of chained function and user specified base.
low() - Method in record class org.djutils.math.functions.Interval: Returns the value of the low record component.
lowInclusive() - Method in record class org.djutils.math.functions.Interval: Returns the value of the lowInclusive record component.

M

main(String[]) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2
MathFunction - Interface in org.djutils.math.functions: MathFunction interface.
MathFunction.TupleSt - Record Class in org.djutils.math.functions: Wrapper for one domain and function value pair.
mergeAdd(MathFunction) - Method in class org.djutils.math.functions.Constant
mergeAdd(MathFunction) - Method in class org.djutils.math.functions.Exponential
mergeAdd(MathFunction) - Method in class org.djutils.math.functions.Logarithm
mergeAdd(MathFunction) - Method in interface org.djutils.math.functions.MathFunction: This MathFunction is added to another; try to replace both by a combined MathFunction.
mergeAdd(MathFunction) - Method in class org.djutils.math.functions.Power
mergeAdd(MathFunction) - Method in class org.djutils.math.functions.Sine
mergeDivide(MathFunction) - Method in interface org.djutils.math.functions.MathFunction: This MathFunction is divided by another; try to replace both by a combined MathFunction.
mergeDivide(MathFunction) - Method in class org.djutils.math.functions.Power
mergeMultiply(MathFunction) - Method in class org.djutils.math.functions.Constant
mergeMultiply(MathFunction) - Method in interface org.djutils.math.functions.MathFunction: This MathFunction is multiplied by another; try to replace both by a combined MathFunction.
mergeMultiply(MathFunction) - Method in class org.djutils.math.functions.Power
mergeMultiply(MathFunction) - Method in class org.djutils.math.functions.Sine
minus(double) - Method in class org.djutils.math.complex.Complex: Subtract a scalar from this Complex.
minus(Complex) - Method in class org.djutils.math.complex.Complex: Subtract another Complex from this Complex.
MINUS_I - Static variable in class org.djutils.math.complex.Complex: The negative imaginary unit value (i).
MINUS_ONE - Static variable in class org.djutils.math.complex.Complex: The (real) minus one value in the complex number space.

N

Nan - Class in org.djutils.math.functions: Nan; MathFunction that returns NaN.
NAN - Static variable in class org.djutils.math.functions.Nan: MathFunction that always return NaN (Not A Number).
NONE - Enum constant in enum class org.djutils.math.functions.KnotReport: It is certain that there are no knots in the interval.
norm() - Method in class org.djutils.math.complex.Complex: Compute and return the norm, or radius, or absolute value of this complex number.
normalizeAroundPi(double) - Static method in class org.djutils.math.AngleUtil: Normalize an angle (in radians) in a 2π wide interval around π, resulting in angles in the 0 to 2π interval.
normalizeAroundZero(double) - Static method in class org.djutils.math.AngleUtil: Normalize an angle (in radians) in a 2π wide interval around 0, resulting in angles in the -π to π interval.

O

ONE - Static variable in class org.djutils.math.complex.Complex: The (real) one value in the complex number space.
ONE - Static variable in class org.djutils.math.functions.Constant: The constant value function that is always one and has infinite domain.
org.djutils.math - package org.djutils.math
org.djutils.math.complex - package org.djutils.math.complex: package-info.java.
org.djutils.math.functions - package org.djutils.math.functions: Code that manipulates functions.
org.djutils.math.means - package org.djutils.math.means: Compute various kinds of mean values.
org.djutils.math.polynomialroots - package org.djutils.math.polynomialroots: Compute roots (zeros) of linear, quadratic, cubic and quartic polynomials.

P

payload() - Method in record class org.djutils.math.functions.Interval: Returns the value of the payload record component.
phi() - Method in class org.djutils.math.complex.Complex: Compute and return the phase or phi of this complex number.
PI2 - Static variable in class org.djutils.math.AngleUtil: The value 2π.
plus(double) - Method in class org.djutils.math.complex.Complex: Add a scalar to this Complex.
plus(Complex) - Method in class org.djutils.math.complex.Complex: Add this Complex and another Complex.
PolynomialRoots - Class in org.djutils.math.polynomialroots: PolynomialRoots.java.
PolynomialRoots2 - Class in org.djutils.math.polynomialroots: PolynomialRoots2 implements functions to find all roots of linear, quadratic, cubic and quartic polynomials, as well as higher order polynomials without restrictions on the order.
Power - Class in org.djutils.math.functions: MathFunctions that are a constant times some power of x; generally f(x) → a * x^^b where a ∈ ℝ and b ∈ ℝ
Power(double) - Constructor for class org.djutils.math.functions.Power: Create a new power function with weight 1.0 and the supplied value as exponent.
Power(double, double) - Constructor for class org.djutils.math.functions.Power: Construct a new power function.
Power(MathFunction, double) - Constructor for class org.djutils.math.functions.Power: Create a new power function with weight 1.0 and the supplied value as exponent.
Power(MathFunction, double, double) - Constructor for class org.djutils.math.functions.Power: Construct a new power function.
printValue(double) - Method in interface org.djutils.math.functions.MathFunction: Format a numerical value.
Product - Class in org.djutils.math.functions: Multiply functions.
Product(List<MathFunction>) - Constructor for class org.djutils.math.functions.Product: Construct the product of one or more functions.
Product(MathFunction...) - Constructor for class org.djutils.math.functions.Product: Construct the product of one or more functions.

Q

quadraticRoots(double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: QUADRATIC POLYNOMIAL ROOT SOLVER
quadraticRoots(double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: QUADRATIC POLYNOMIAL ROOT SOLVER
quadraticRoots(double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: QUADRATIC POLYNOMIAL ROOT SOLVER
quadraticRoots(double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: QUADRATIC POLYNOMIAL ROOT SOLVER
quarticRoots(double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: QUARTIC POLYNOMIAL ROOT SOLVER
quarticRoots(double, double, double, double, boolean) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: QUARTIC POLYNOMIAL ROOT SOLVER
quarticRoots(double, double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots: QUARTIC POLYNOMIAL ROOT SOLVER
quarticRootsAberthEhrlich(double, double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: QUADRATIC POLYNOMIAL ROOT SOLVER.
quarticRootsDurandKerner(double, double, double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: QUADRATIC POLYNOMIAL ROOT SOLVER.
Quotient - Class in org.djutils.math.functions: Quotient.java.
Quotient(MathFunction, MathFunction) - Constructor for class org.djutils.math.functions.Quotient: Construct a new Quotient; division of two MathFunctions, generally numerator / denominator.

R

re - Variable in class org.djutils.math.complex.Complex: Real component.
reciprocal() - Method in class org.djutils.math.complex.Complex: Compute the reciprocal of this Complex.
rootBisection(double[], double, double, double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: Polynomial root finder using the bisection method combined with bisection to avoid cycles and the algorithm going out of bounds.
rootNewtonRaphson(double[], double) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: Polynomial root finder using the Newton-Raphson method.
rootsAberthEhrlich(Complex[]) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: Polynomial root finder using the Aberth-Ehrlich method or Aberth method, with complex coefficients for the polynomial equation.
rootsDurandKerner(Complex[]) - Static method in class org.djutils.math.polynomialroots.PolynomialRoots2: Polynomial root finder using the Durand-Kerner method, with complex coefficients for the polynomial equation.
rotate(double) - Method in class org.djutils.math.complex.Complex: Rotate this Complex by an angle.

S

s() - Method in record class org.djutils.math.functions.MathFunction.TupleSt: Returns the value of the s record component.
scaleBy(double) - Method in class org.djutils.math.functions.ArcSine
scaleBy(double) - Method in class org.djutils.math.functions.ArcTangent
scaleBy(double) - Method in class org.djutils.math.functions.Concatenation
scaleBy(double) - Method in class org.djutils.math.functions.Constant
scaleBy(double) - Method in class org.djutils.math.functions.Exponential
scaleBy(double) - Method in class org.djutils.math.functions.Logarithm
scaleBy(double) - Method in interface org.djutils.math.functions.MathFunction: Incorporate a multiplication factor to this MathFunction.
scaleBy(double) - Method in class org.djutils.math.functions.Nan
scaleBy(double) - Method in class org.djutils.math.functions.Power
scaleBy(double) - Method in class org.djutils.math.functions.Product
scaleBy(double) - Method in class org.djutils.math.functions.Quotient
scaleBy(double) - Method in class org.djutils.math.functions.Sine
scaleBy(double) - Method in class org.djutils.math.functions.Sum
simplify() - Method in class org.djutils.math.functions.ArcSine
simplify() - Method in class org.djutils.math.functions.ArcTangent
simplify() - Method in class org.djutils.math.functions.Constant
simplify() - Method in class org.djutils.math.functions.Exponential
simplify() - Method in class org.djutils.math.functions.Logarithm
simplify() - Method in interface org.djutils.math.functions.MathFunction: Attempts to find a simplified version of this MathFunction (e.g. replace 1 - 5 by -4).
simplify() - Method in class org.djutils.math.functions.Power
simplify() - Method in class org.djutils.math.functions.Product
simplify() - Method in class org.djutils.math.functions.Quotient
simplify() - Method in class org.djutils.math.functions.Sine
simplify() - Method in class org.djutils.math.functions.Sum
sin(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Sine function of a Complex operand.
Sine - Class in org.djutils.math.functions: Sine function.
Sine(double, double, double) - Constructor for class org.djutils.math.functions.Sine: Construct a new Sine function factor * sin(omega * x + shift).
Sine(MathFunction, double, double, double) - Constructor for class org.djutils.math.functions.Sine: Construct a new Sine function factor * sin(omega * x + shift).
sinh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Hyperbolic sine function of a Complex operand.
sortPriority() - Method in class org.djutils.math.functions.ArcSine
sortPriority() - Method in class org.djutils.math.functions.ArcTangent
sortPriority() - Method in class org.djutils.math.functions.Concatenation
sortPriority() - Method in class org.djutils.math.functions.Constant
sortPriority() - Method in class org.djutils.math.functions.Exponential
sortPriority() - Method in class org.djutils.math.functions.Logarithm
sortPriority() - Method in interface org.djutils.math.functions.MathFunction: Sorting priority of this type of MathFunction (low values shall sort before higher).
sortPriority() - Method in class org.djutils.math.functions.Nan
sortPriority() - Method in class org.djutils.math.functions.Power
sortPriority() - Method in class org.djutils.math.functions.Product
sortPriority() - Method in class org.djutils.math.functions.Quotient
sortPriority() - Method in class org.djutils.math.functions.Sine
sortPriority() - Method in class org.djutils.math.functions.Sum
sqrt(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Principal square root of a Complex operand.
Sum - Class in org.djutils.math.functions: Add up one or more MathFunction objects.
Sum(List<MathFunction>) - Constructor for class org.djutils.math.functions.Sum: Construct the sum of one or more functions.
Sum(MathFunction...) - Constructor for class org.djutils.math.functions.Sum: Construct the sum of one or more functions.
SuperScript - Class in org.djutils.math.functions: Draw text in unicode superscript glyphs.
SuperScript() - Constructor for class org.djutils.math.functions.SuperScript: Create the SuperScript converter.

T

t() - Method in record class org.djutils.math.functions.MathFunction.TupleSt: Returns the value of the t record component.
tan(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Tangent function of a Complex operand.
tanh(Complex) - Static method in class org.djutils.math.complex.ComplexMath: Hyperbolic tangent function of a Complex operand.
times(double) - Method in class org.djutils.math.complex.Complex: Multiply this Complex with a scalar.
times(Complex) - Method in class org.djutils.math.complex.Complex: Multiply this Complex with another Complex.
toString() - Method in class org.djutils.math.complex.Complex
toString() - Method in class org.djutils.math.functions.ArcSine
toString() - Method in class org.djutils.math.functions.ArcTangent
toString() - Method in class org.djutils.math.functions.Concatenation
toString() - Method in class org.djutils.math.functions.Constant
toString() - Method in class org.djutils.math.functions.Exponential
toString() - Method in record class org.djutils.math.functions.Interval: Returns a string representation of this record class.
toString() - Method in class org.djutils.math.functions.Logarithm
toString() - Method in record class org.djutils.math.functions.MathFunction.TupleSt: Returns a string representation of this record class.
toString() - Method in class org.djutils.math.functions.Nan
toString() - Method in class org.djutils.math.functions.Power
toString() - Method in class org.djutils.math.functions.Product
toString() - Method in class org.djutils.math.functions.Quotient
toString() - Method in class org.djutils.math.functions.Sine
toString() - Method in class org.djutils.math.functions.Sum
toString() - Method in class org.djutils.math.means.ArithmeticMean
toString() - Method in class org.djutils.math.means.GeometricMean
toString() - Method in class org.djutils.math.means.HarmonicMean
translate(char) - Method in class org.djutils.math.functions.SuperScript: Translate one character to superscript.
translate(String) - Method in class org.djutils.math.functions.SuperScript: Translate a String into superscript.
TupleSt(double, double) - Constructor for record class org.djutils.math.functions.MathFunction.TupleSt: Creates an instance of a TupleSt record class.

U

UNKNOWN - Enum constant in enum class org.djutils.math.functions.KnotReport: The presence, or number of knots in the interval is not known.

V

valueOf(String) - Static method in enum class org.djutils.math.functions.Concatenation.Discontinuity: Returns the enum constant of this class with the specified name.
valueOf(String) - Static method in enum class org.djutils.math.functions.KnotReport: Returns the enum constant of this class with the specified name.
values() - Static method in enum class org.djutils.math.functions.Concatenation.Discontinuity: Returns an array containing the constants of this enum class, in the order they are declared.
values() - Static method in enum class org.djutils.math.functions.KnotReport: Returns an array containing the constants of this enum class, in the order they are declared.

Z

ZERO - Static variable in class org.djutils.math.complex.Complex: The zero value in the complex number space.
ZERO - Static variable in class org.djutils.math.functions.Constant: The constant value function that is always zero and has infinite domain.

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