Re: Quick math calc on any buffer

[Marc Tfardy <m-t-o___CUT__IT@web.de>]

Scott Frazer schrieb:
> On Feb 21, 11:42 am, Rodrigo Lazo <rlazo....@gmail.com> wrote:
>> 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.
>>
> 
> (defun my-calc-result (beg end)
>   (interactive "r")
>   (insert " = " (calc-eval (buffer-substring beg end))))

Great! Much more elegant than my last attempt:

(defun my-calc-result2 (beg end)
   (interactive "r")
   (insert " = " (number-to-string (apply 'eval (math-read-exprs 
(buffer-substring beg end))))))


regards
marc