This chapter contains information about functions for performing mathematical computations, such as trigonometric functions. Most of these functions have prototypes declared in the header file `math.h'.
All of the functions that operate on floating-point numbers accept
arguments and return results of type
double. In the future,
there may be additional functions that operate on
long double values. For example,
would be versions of the
cos function that operate on
long double arguments, respectively. In the
meantime, you should avoid using these names yourself. See section Reserved Names.
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