make a calculator ( pascal )!

[R110]

Hi all
I want to program a scientific calculator with pascal. does any one have any idea how should I do it , or do you know any usefull site to see some exampls?

Thanks in advance
Ramin

 

[cozturk]

Why not in delphi?
if you want to use ready made one
**broken link removed**
https://www.dreamcalc.net/