## Uses of Classorg.apache.commons.math3.complex.Complex

• Packages that use Complex
Package Description
org.apache.commons.math3.analysis.solvers
Root finding algorithms, for univariate real functions.
org.apache.commons.math3.complex
Complex number type and implementations of complex transcendental functions.
org.apache.commons.math3.transform
Implementations of transform methods, including Fast Fourier transforms.
• ### Uses of Complex in org.apache.commons.math3.analysis.solvers

Methods in org.apache.commons.math3.analysis.solvers that return Complex
Modifier and Type Method and Description
Complex[] LaguerreSolver.solveAllComplex(double[] coefficients, double initial)
Find all complex roots for the polynomial with the given coefficients, starting from the given initial value.
Complex[] LaguerreSolver.solveAllComplex(double[] coefficients, double initial, int maxEval)
Find all complex roots for the polynomial with the given coefficients, starting from the given initial value.
Complex LaguerreSolver.solveComplex(double[] coefficients, double initial)
Find a complex root for the polynomial with the given coefficients, starting from the given initial value.
Complex LaguerreSolver.solveComplex(double[] coefficients, double initial, int maxEval)
Find a complex root for the polynomial with the given coefficients, starting from the given initial value.
• ### Uses of Complex in org.apache.commons.math3.complex

Fields in org.apache.commons.math3.complex declared as Complex
Modifier and Type Field and Description
static Complex Complex.I
The square root of -1.
static Complex Complex.INF
A complex number representing "+INF + INFi"
static Complex Complex.NaN
A complex number representing "NaN + NaNi"
static Complex Complex.ONE
A complex number representing "1.0 + 0.0i"
static Complex Complex.ZERO
A complex number representing "0.0 + 0.0i"
Methods in org.apache.commons.math3.complex that return Complex
Modifier and Type Method and Description
Complex Complex.acos()
Compute the inverse cosine of this complex number.
Complex Complex.add(Complex addend)
Returns a Complex whose value is (this + addend).
Complex Complex.add(double addend)
Returns a Complex whose value is (this + addend), with addend interpreted as a real number.
Complex Complex.asin()
Compute the inverse sine of this complex number.
Complex Complex.atan()
Compute the inverse tangent of this complex number.
Complex Complex.conjugate()
Returns the conjugate of this complex number.
static Complex[] ComplexUtils.convertToComplex(double[] real)
Convert an array of primitive doubles to an array of Complex objects.
Complex Complex.cos()
Compute the cosine of this complex number.
Complex Complex.cosh()
Compute the hyperbolic cosine of this complex number.
protected Complex Complex.createComplex(double realPart, double imaginaryPart)
Create a complex number given the real and imaginary parts.
Complex Complex.divide(Complex divisor)
Returns a Complex whose value is (this / divisor).
Complex Complex.divide(double divisor)
Returns a Complex whose value is (this / divisor), with divisor interpreted as a real number.
Complex Complex.exp()
Compute the exponential function of this complex number.
Complex ComplexField.getOne()
Get the multiplicative identity of the field.
Complex ComplexField.getZero()
Get the additive identity of the field.
Complex Complex.log()
Compute the natural logarithm of this complex number.
Complex Complex.multiply(Complex factor)
Returns a Complex whose value is this * factor.
Complex Complex.multiply(double factor)
Returns a Complex whose value is this * factor, with factor interpreted as a real number.
Complex Complex.multiply(int factor)
Returns a Complex whose value is this * factor, with factor interpreted as a integer number.
Complex Complex.negate()
Returns a Complex whose value is (-this).
Complex ComplexFormat.parse(String source)
Parses a string to produce a Complex object.
Complex ComplexFormat.parse(String source, ParsePosition pos)
Parses a string to produce a Complex object.
static Complex ComplexUtils.polar2Complex(double r, double theta)
Creates a complex number from the given polar representation.
Complex Complex.pow(Complex x)
Returns of value of this complex number raised to the power of x.
Complex Complex.pow(double x)
Returns of value of this complex number raised to the power of x.
Complex Complex.reciprocal()
Returns the multiplicative inverse of this element.
Complex Complex.sin()
Compute the sine of this complex number.
Complex Complex.sinh()
Compute the hyperbolic sine of this complex number.
Complex Complex.sqrt()
Compute the square root of this complex number.
Complex Complex.sqrt1z()
Compute the square root of 1 - this2 for this complex number.
Complex Complex.subtract(Complex subtrahend)
Returns a Complex whose value is (this - subtrahend).
Complex Complex.subtract(double subtrahend)
Returns a Complex whose value is (this - subtrahend).
Complex Complex.tan()
Compute the tangent of this complex number.
Complex Complex.tanh()
Compute the hyperbolic tangent of this complex number.
static Complex Complex.valueOf(double realPart)
Create a complex number given only the real part.
static Complex Complex.valueOf(double realPart, double imaginaryPart)
Create a complex number given the real and imaginary parts.
Methods in org.apache.commons.math3.complex that return types with arguments of type Complex
Modifier and Type Method and Description
Class<? extends FieldElement<Complex>> ComplexField.getRuntimeClass()
Returns the runtime class of the FieldElement.
List<Complex> Complex.nthRoot(int n)
Computes the n-th roots of this complex number.
Methods in org.apache.commons.math3.complex with parameters of type Complex
Modifier and Type Method and Description
Complex Complex.add(Complex addend)
Returns a Complex whose value is (this + addend).
Complex Complex.divide(Complex divisor)
Returns a Complex whose value is (this / divisor).
static boolean Complex.equals(Complex x, Complex y)
Returns true iff the values are equal as defined by equals(x, y, 1).
static boolean Complex.equals(Complex x, Complex y, double eps)
Returns true if, both for the real part and for the imaginary part, there is no double value strictly between the arguments or the difference between them is within the range of allowed error (inclusive).
static boolean Complex.equals(Complex x, Complex y, int maxUlps)
Test for the floating-point equality between Complex objects.
static boolean Complex.equalsWithRelativeTolerance(Complex x, Complex y, double eps)
Returns true if, both for the real part and for the imaginary part, there is no double value strictly between the arguments or the relative difference between them is smaller or equal to the given tolerance.
String ComplexFormat.format(Complex c)
StringBuffer ComplexFormat.format(Complex complex, StringBuffer toAppendTo, FieldPosition pos)
Formats a Complex object to produce a string.
Complex Complex.multiply(Complex factor)
Returns a Complex whose value is this * factor.
Complex Complex.pow(Complex x)
Returns of value of this complex number raised to the power of x.
Complex Complex.subtract(Complex subtrahend)
Returns a Complex whose value is (this - subtrahend).
• ### Uses of Complex in org.apache.commons.math3.transform

Methods in org.apache.commons.math3.transform that return Complex
Modifier and Type Method and Description
static Complex[] TransformUtils.createComplexArray(double[][] dataRI)
Builds a new array of Complex from the specified two dimensional array of real and imaginary parts.
static Complex[] TransformUtils.scaleArray(Complex[] f, double d)
Multiply every component in the given complex array by the given real number.
Complex[] FastFourierTransformer.transform(Complex[] f, TransformType type)
Returns the (forward, inverse) transform of the specified complex data set.
Complex[] FastFourierTransformer.transform(double[] f, TransformType type)
Returns the (forward, inverse) transform of the specified real data set.
Complex[] FastFourierTransformer.transform(UnivariateFunction f, double min, double max, int n, TransformType type)
Returns the (forward, inverse) transform of the specified real function, sampled on the specified interval.
Methods in org.apache.commons.math3.transform with parameters of type Complex
Modifier and Type Method and Description
static double[][] TransformUtils.createRealImaginaryArray(Complex[] dataC)
Builds a new two dimensional array of double filled with the real and imaginary parts of the specified Complex numbers.
static Complex[] TransformUtils.scaleArray(Complex[] f, double d)
Multiply every component in the given complex array by the given real number.
Complex[] FastFourierTransformer.transform(Complex[] f, TransformType type)
Returns the (forward, inverse) transform of the specified complex data set.