Java Utililty Methods Number Power

List of utility methods to do Number Power

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Description

The list of methods to do Number Power are organized into topic(s).

Method

voidPow(double val, Object in)
Pow 
if (in == null)
    return;
if (in instanceof double[]) {
    double[] inn = (double[]) in;
    for (int i = 0, s = inn.length; i < s; i++)
        inn[i] = Math.pow(val, inn[i]);
} else {
    for (int i = 0, s = ((Object[]) in).length; i < s; i++)
...
doublePow(double value)
square. 
return (value * value);
doublepow(double value)
pow 
return Math.pow(value, 2);
doublepow(double x, double y)
pow 
if (x == 0.)
    return 0.;
if (x == 1.)
    return 1.;
if (y == 0.)
    return 1.;
if (y == 1.)
    return x;
...
doublepow(double x, double y)
Raise a number to a power. 
if (y == 0)
    return 1;
if (y == 1)
    return x;
if (y == -1)
    return 1 / x;
if (x != x || y != y)
    return Double.NaN;
...
doublepow(double x, double y)
pow 
return powTaylor(x, y);
doublepow(double x, int n)
This is a fast pow implementation 
if (n == 0) {
    return 1.0;
for (int i = 1; i < n; ++i) {
    x *= x;
return x;
double[]pow(double[] array, double exp)
calls Math.pow for each element of the array 
for (int i = 0; i < array.length; i++) {
    array[i] = Math.pow(array[i], exp);
return array;
double[][]pow(double[][] x, int p)
pow 
for (int i = 0; i < x.length; i++) {
    for (int j = 0; j < x[0].length; j++) {
        x[i][j] = Math.pow(x[i][j], p);
return x;
double[]pow(final double[] values, final double exp)
Performs termwise Math.pow(double,double) on the elements. 
final double[] ret = new double[values.length];
for (int i = values.length; i-- != 0;)
    ret[i] = Math.pow(values[i], exp);
return ret;