Java Utililty Methods sqr

return (float) StrictMath.sqrt((double) a);

return (float) Math.sqrt(f);

int s = (n + 65536) >> 1;
for (int i = 0; i < 8; i++) {
    s = (s + div(n, s)) >> 1;
return s;

int temp, g = 0, b = 0x8000, bshft = 15;
do {
    if (val >= (temp = (((g << 1) + b) << bshft--))) {
        g += b;
        val -= temp;
} while ((b >>= 1) > 0);
return g;
...

double epsilon = 1e-15;
double estimate = val;
while (Math.abs(estimate - val / estimate) > epsilon * estimate) {
    estimate = (val / estimate + estimate) / 2l;
return (long) estimate;

long y = 0;
long b = (~Long.MAX_VALUE) >>> 1;
while (b > 0) {
    if (x >= y + b) {
        x -= y + b;
        y >>= 1;
        y += b;
    } else {
...

return Math.sqrt(a.doubleValue());

return (short) Math.sqrt(value);

x = fastInverseSqrt(x);
if (x > 0) {
    return 1.0f / x;
} else {
    return 0;

return sqrt(sq(x) + sq(y));