dev.nm.number.doublearray

Interface DoubleArrayOperation

All Known Implementing Classes:

CompositeDoubleArrayOperation, ParallelDoubleArrayOperation, SimpleDoubleArrayOperation

public interface DoubleArrayOperation

It is possible to provide different implementations for different platforms, hardware, etc. For example, there are single vs. multiple threads, single vs. multiple cores, single vs. multiple machines, GPU or not, etc.

Method Summary

Modifier and Type	Method and Description
double[]	add(double[] arr1, double[] arr2) Add two double arrays, entry-by-entry.
double[]	divide(double[] arr1, double[] arr2) Divide one double array by another, entry-by-entry.
double[]	minus(double[] arr1, double[] arr2) Subtract one double array from another, entry-by-entry.
double[]	multiply(double[] arr1, double[] arr2) Multiply one double array to another, entry-by-entry.
double[]	scaled(double[] arr, double c) Scale each entry of a double array.

Method Detail

add

double[] add(double[] arr1,
             double[] arr2)

Add two double arrays, entry-by-entry.

Parameters:

arr1 - an array double[]

arr2 - an array double[]

Returns:

the sum of the two arrays

minus

double[] minus(double[] arr1,
               double[] arr2)

Subtract one double array from another, entry-by-entry.

Parameters:

arr1 - an array double[]

arr2 - an array double[]

Returns:

the difference of the two arrays

multiply

double[] multiply(double[] arr1,
                  double[] arr2)

Multiply one double array to another, entry-by-entry.

Parameters:

arr1 - an array double[]

arr2 - an array double[]

Returns:

the product of the two arrays

divide

double[] divide(double[] arr1,
                double[] arr2)

Divide one double array by another, entry-by-entry.

Parameters:

arr1 - an array double[]

arr2 - an array double[]

Returns:

the quotient array

scaled

double[] scaled(double[] arr,
                double c)

Scale each entry of a double array.

Parameters:

arr - an array double[]

c - a scaling constant

Returns:

the scaled array