log2()

C++ Math isinf() The function determines whether the number is infinite or not. It can be positive or negative infinite. If the…

C++ Math lround() This function is used to round off the given value and cast to long integer. Syntax Suppose a number…

C++ Math acos() This function computes the inverse cosine of a number in radian. acos(x) = cos -1x Syntax Suppose a number…

C++ Math expm1() The function computes the exponential ‘e’ raised to the power a given number minus 1. Suppose a number is…

C++ Math islessequal() The islessequal() function checks whether the value of first argument is less than or equal to the second argument.…

C++ Math modf() This function is used to divide a number into integral and fractional part. For example : 2.16 = 2…

C++ Math acosh() The function computes the arc hyperbolic cosine of an angle given in radian. Where, an arc hyperbolic cosine is…

C++ Math fabs() It computes the absolute value of a given number. Suppose a number is ‘x’: fabs(x) = |x|; Syntax float…

C++ Math islessgreater() The islessgreater() fuinction determines whether the value of first argument is less than or greater than the value of…

C++ Math nearbyint() The function rounds off the given value to a nearby integral value by using the current rounding method. The…