NAME

tanh, dtanh − Fortran hyperbolic tangent intrinsic function

SYNOPSIS

real r1, r2
double precision dp1, dp2

r2 = tanh(r1)

dp2 = dtanh(dp1)
dp2 = tanh(dp1)

DESCRIPTION

tanh returns the real hyperbolic tangent of its real argument.  dtanh returns the double-precision hyperbolic tangent of its double-precision argument.  The generic form tanh may be used to return a double-precision value given a double-precision argument. 

SEE ALSO

sinh(3M). 

CX/UX Hf77 Fortran Reference Manual