composition of functions

[Mark Hardman]

(07-22-2014 01:23 AM)Alberto Candel Wrote:  Is there a command for the composition of two functions, f and g, in CAS? There is f@@g in xcas, but I do not seem to get it to work in the Prime.

Try something along the lines of:

f(x):=√(x²-1)
g(x):=4*x

The composition of the two functions is simply:

f(g(x))

HTH