Creating a calculator

[Pierre-Alain Dorange]

DFS <nospam at dfs.com> wrote:

> Here's a related program that doesn't require you to tell it what type
> of operation to perform.  Just enter 'num1 operator num2' and hit Enter,
> and it will parse the entry and do the math.
> 
> -----------------------------------------------
> ui=raw_input('Enter calculation to perform: ')
> n1=float(ui.split(' ')[0])
> op=ui.split(' ')[1]
> n2=float(ui.split(' ')[2])
> if op=='+':c=n1+n2
> if op=='-':c=n1-n2
> if op=='*':c=n1*n2
> if op=='/':c=n1/n2
> print(ui+' = '+str(c))
> -----------------------------------------------

More reduced :
----------------------------------
u=raw_input('Enter calculation:")
print eval(u)
----------------------------------
works and compute :
1+2+3+4-1+4*2
2+3.0/2-0.5

Perform better and shorter, but less educationnal of course...

-- 
Pierre-Alain Dorange               Moof <http://clarus.chez-alice.fr/>

Ce message est sous licence Creative Commons "by-nc-sa-2.0"
<http://creativecommons.org/licenses/by-nc-sa/2.0/fr/>