math.operations

Class Operators

java.lang.Object

math.operations.Operators

public final class Operators
extends Object

Static methods for performing vector operations on arrays.

Method Summary

Modifier and Type	Method and Description
static double[]	differenceOf(double[] left, double[] right) Take the element-by-element difference of the two arrays and return the result in a new array.
static double[]	productOf(double[] left, double[] right) Take the element-by-element product of the two arrays and return the result in a new array.
static double[]	quotientOf(double[] numerator, double[] denominator) Take the element-by-element quotient of the two arrays and return the result in a new array.
static double[]	scale(double[] original, double alpha) Scale the original data by alpha and return the result in a new array.
static double[]	subtract(double[] data, double value) Subtract the given value from each element of the supplied data and return the result in a new array.
static double[]	sumOf(double[] left, double[] right) Take the element-by-element sum of the two arrays and return the result in a new array.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

productOf

public static double[] productOf(double[] left,
                                 double[] right)

Take the element-by-element product of the two arrays and return the result in a new array.

Parameters:

left - the first array to take the product with.

right - the second array to take the product with.

Returns:

the element-by-element product of the two arrays.

sumOf

public static double[] sumOf(double[] left,
                             double[] right)

Take the element-by-element sum of the two arrays and return the result in a new array.

Parameters:

left - the first array to take the sum with.

right - the second array to take the sum with.

Returns:

the element-by-element sum of the two arrays.

differenceOf

public static double[] differenceOf(double[] left,
                                    double[] right)

Take the element-by-element difference of the two arrays and return the result in a new array.

Parameters:

left - the first array to take the difference with.

right - the second array to take the difference with.

Returns:

the element-by-element difference of the two arrays.

quotientOf

public static double[] quotientOf(double[] numerator,
                                  double[] denominator)

Take the element-by-element quotient of the two arrays and return the result in a new array.

Parameters:

numerator - the array of numerators.

denominator - the array of denominators.

Returns:

the element-by-element quotient of the two arrays.

scale

public static double[] scale(double[] original,
                             double alpha)

Scale the original data by alpha and return the result in a new array.

Parameters:

original - the data to be scaled.

alpha - the scaling factor.

Returns:

the original data scaled by alpha.

subtract

public static double[] subtract(double[] data,
                                double value)

Subtract the given value from each element of the supplied data and return the result in a new array.

Parameters:

data - the data to subtract the value from.

value - the value to be subtracted.

Returns:

a new array with each element of the supplied data subtracted by the given value.