Java Utililty Methods sin to cos

List of utility methods to do sin to cos

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Description

The list of methods to do sin to cos are organized into topic(s).

Method

doublesinToCos(double angle, double sin)
Fast way of computing cos(x) from x and sin(x). 
if ((-1e-5 < sin && sin < 1e-5) || sin > 0.99999 || sin < -0.99999) {
    return Math.cos(angle);
angle = normAngle(angle);
final double s = Math.sqrt(1 - sin * sin);
return (angle < HALFPI || angle > ONEHALFPI) ? s : -s;