They are built in to the Java language, so are accessible in Processing too. They are part of the
Math class, so you'd use them something like
double answer = Math.cosh(1.23456);
or if you prefer to stick with Processing default precision for decimal numbers:
float answer = (float)Math.cosh(1.23456);
The same applies to
sinh() and
tanh(). For inverse hyperbolic trig functions, you'd need to calculate your own, but this is
pretty easy
