On 15/11/08 04:48, Kevin Dillman wrote:
> I just found a way to use vim as a calculator by using a Ruby one liner.
> :!ruby -e 'puts 5*2'
> will open a cmd window and output the result.
> If you want to read the result into your vim buffer use:
> :r!ruby -e 'puts 74/5.0'
> You can even use the contents of a register in the calculation command
> by yanking to a register: select text then "ay will yank to register 'a'.
> then in the command paste from the 'a' register:<C-R>a.
> I then I used this in a keyboard macro and it worked great.
> I hope you find this tip useful.
> Kevin
To use Vim (without +ruby) as a calculator:
:echo 5 * 2
10
To save it to a register (here, the system clipboard):
:let @+ = 5 * 2
To use a register in it
:echo @+ + 5
15
For calculations on floating-point numbers it can be done too, but only
if you have +float compiled-in:
:echo printf('%.13g',4 * atan(1.0))
3.1415926535898
:let @+ = printf('%.13g', 4 * atan(1.0))
etc.
Best regards,
Tony.
--
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He was not afraid to die, Oh Brave Sir Robin,
He was not at all afraid to be killed in nasty ways
Brave, brave, brave, brave Sir Robin.
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