Narendra Joshi <

[hidden email]> writes:

> 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!

>

You need to store a value in a variable with "s s" and then evaluate the formula

with "=".

E.g.:

'0.01*(n^2 + 4*n + 100) RET enters the formula on the stack

SP duplicates it

100 s s n puts 100 at the top of the stack and assigns it to "n".

DEL get rid of the 100 at the top of the stack

= evaluate the formula

TAB rotate the stack to move the value above the formula

Repeat steps 2 through 6 with different values for n.

HTH.

--

Nick

"There are only two hard problems in computer science: cache

invalidation, naming things, and off-by-one errors." -Martin Fowler