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

doublepow(double a, double b)
pow 
double pow = 1;
for (int i = 0; i < b; i++) {
    pow *= a;
return pow;
doublepow(double a, double b)
Return a to the power of b, sometimes written as a ** b but not to be confused with the bitwise ^ operator. 
return ieee754_pow(a, b);
doublepow(double a, double b)
Computes a relaxed power function. 
if (a != 0) {
    return Math.pow(a, b);
return 0;
doublepow(double a, double b)
Returns the value of the first argument raised to the power of the second argument. 
return Math.pow(a, b);
doublepow(double a, int b)
Computes a^b for integer exponents. 
if (b < 0.0) {
    a = 1.0 / a;
    b *= -1;
double result = 1.0;
while (b != 0) {
    if ((b & 1) == 1) {
        result *= a;
...
doublepow(double base, double exp)
pow 
return Math.pow(base, exp);
doublepow(double base, int exp)
pow 
double result = 1.0;
while (exp > 0) {
    if ((exp & 1) == 1) {
        result = result * base;
        exp--;
    base = base * base;
    exp /= 2;
...
doublepow(double base, int exp)
pow 
return exp == 0 ? 1 : sq(pow(base, exp / 2)) * (exp % 2 == 1 ? base : 1);
doublepow(double base, int exponent)
pow 
if (exponent == 0)
    return 1;
if (exponent == 1)
    return base;
if (exponent == -1)
    return 1 / base;
boolean negative;
if (exponent < 0) {
...
intpow(double number)
pow 
if (number < 2)
    return 2;
int i = 1;
int result = 0;
while (result < number) {
    result = (int) Math.pow(2, i++);
return result;
...