C++ Standard Library

C++ <cmath>

C++ cos()

Returns Cosine of the Argument

C++ sin()

Returns Sine of the Argument

C++ asin()

Returns Inverse Sine a Number

C++ atan()

Returns Inverse tangent a Number

C++ tan()

Returns Tangent of the Argument

C++ atan2()

Returns Inverse Tangent of a Coordinate

C++ acos()

Returns Inverse cosine a Number

C++ ceil()

Return ceiling value of number

C++ floor()

Returns floor value of decimal number

C++ fmod()

Computes floating point remainder of division

C++ log()

Returns Natural Logarithm of a Number

C++ round()

Returns integral value nearest to argument

C++ trunc()

Truncates the demical part of a number

C++ log10()

Returns Base 10 Logarithm of a Number

C++ modf()

Breaks Number Into Integral and Fractional Part

C++ exp()

returns exponential (e) raised to a number

C++ log2()

returns base2 logarithm of a number

C++ sqrt()

Computes Square Root of A Number

C++ fmax()

returns largest among two arguments passed

C++ nan()

returns a quiet NaN value

C++ fabs()

Returns absolute value of argument

C++ cmath abs()

Returns absolute value of an argument

C++ remainder()

Returns remainder of x/y

C++ pow()

Computes Power a Number

C++ <cstdlib>

C++ atof()

Converts String to Double

C++ strtol()

Converts a string to number

C++ strtoull()

converts string to unsigned long long int

C++ srand()

Seeds pseudo random number for rand()

C++ free()

deallocates a block of memory

C++ malloc()

Allocates a block of unitialized memory

C++ realloc()

reallocates a block of previously allocated memory

C++ getenv()

returns pointer to environment variable passed

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