Evaluate expression using CAS view
Since I could not find the answer, I have the following questions:
Is it possible the evaluate expressions using the CAS view?
E.g.: I have the expressions x+2 and I want to evaluate at x=4. Is there a possibility to type x+2 | x=4 which yields 6?
Or x*y*z | x=a which yields a*y*z.
Thanks for the help.