=====cosh=====
Syntax:

<code>
    #include <cmath>
    double cosh( double arg );
</code>
The function cosh() returns the hyperbolic cosine of arg.

C++ also provides the following overloaded forms:
<code>
    #include <cmath>
    float cosh( float arg ); // same as coshf() in C99
    long double cosh( long double arg ); // same as coshl() in C99
</code>

Related Topics: [[acos]], [[asin]], [[atan]], [[atan2]], [[cos]], [[sin]], [[sinh]], [[tan]], [[tanh]]