François Pinard wrote:
>[stri ker]
>
>> I frequently need to do some basic calculations. [...] Is
>> there a way to do calculations with doubles instead of integers
>> without piping to an external program like bc and then
>> inserting into a buffer?
>
> If you are lucky enough to have a Python-enabled Vim,
> you may use:
>
> :py print 3.7 * 4.5
>
> and read the result (16.65) in the echo area.
Here's how I have set things up for perl-enabled vim:
" evaluate numerical expression in unnammed buffer
" and echo and append result
nmap \e :perl my $foo = eval(VIM::Eval('@*'));
\ VIM::DoCommand("let @* = '" . $foo . " '" );
\ my @pos = $curwin->Cursor();
\ $curbuf->Append($pos[0], $foo);
\ VIM::Msg($foo);<CR>
--Suresh
