Math is not a constructor. Round of 43 is. MathPI returns PI.
Unlike some of the numeric methods of class StrictMath all implementations of the equivalent functions of class Math are not defined to return the bit-for-bit same results.
Mathpow It returns the value of first argument raised to the power to second argument. Class Rectangle constructor height width this. The class Math contains methods for performing basic numeric operations such as the elementary exponential logarithm square root and trigonometric functions. Mathsignum It is used to find the sign of a given value.