Evaluating an algebraic formula in calc-mode

[Narendra Joshi]

Hi,

I am trying to enter an algebraic formula/expression and specify values
for symbols used in the formula and check the value of the expression.

For example,
For 0.01 * (n^2 + 4n + 100), I want to find its value at n = 100, 200.
I have tried looking at the manual but couldn't find anything
quickly. There is `a S` to solve for a symbol but it doesn't do what I
have described here. If you have used calc and can help, it would be
great!

Best, 
-- 
narendraj9