Vim Tip 16 - quick calculations

Practical Vim

The expression register can evaluate a piece of Vim script code and return the result as text. This can be useful to solve quick calculations like 34 * 15.

To use it: <C-r>= while in Insert mode

This opens a prompt at the bottom of the screen and you can type your calculation there. When done, press <CR> and the result will be pasted as text.