The C library function double sinh(double x) returns the hyperbolic sine of x.
double sinh(double x)
#include #include int main () { double x, ret; x = 0.5; ret = sinh(x); printf("The hyperbolic sine of %lf is %lf degrees", x, ret); return(0); }
The hyperbolic sine of 0.500000 is 0.521095 degrees