Math.asinh(x)    → float

Computes the inverse hyperbolic sine of x.

Source Code

/*
*  call-seq:
*     Math.asinh(x)    => float
*  
*  Computes the inverse hyperbolic sine of <i>x</i>.
*/

static VALUE
math_asinh(obj, x)
   VALUE obj, x;
{
   Need_Float(x);
   return rb_float_new(asinh(RFLOAT(x)->value));
}