Re: Quick math calc on any buffer

[Marc Tfardy]

Rodrigo Lazo schrieb:
> Hi all,
>
> Is there a way to compute a math expression on any buffer? I mean, if I
> have a buffer with the following expression
>
> 2 + 3 
>
> I want to mark the region and compute the result
>
> 2 + 3 = 5
>
> It doesn't seems too hard to do, I've looked on calculator.el for a
> "computing" function I can call but I didn't find it. 

Try with embeded mode of calc: C-x * E (no need to mark the region)
and similar commands (J or W in place of E). You need to type C-x * E
again to exit the embeded mode.


Another solution:

 - mark the region with math expression and put it into kill-ring (M-w)
 - type SPC = SPC
 - run the calc (C-x * c)
 - type ' (apostrophe) and yank yor math expression (C-y)
 - type RET
 - type y (or C-x * y) to copy the result into buffer
 - exit calc (q)


regards
marc