How do I use the expression register for calculations?

Q: How do I use the expression register for calculations?

`"=2+3 p` The expression register `=` evaluates a Vimscript expression and stores the result. You can use it for inline calculations or dynamic text insertion. ## How it works - `"=` enters the expression register prompt in normal mode - Type any Vimscript expression - Press ` ` to evaluate - `p` pastes the result ## Example To insert the result of 42 * 7: ```vim "=42*7 p ``` Inserts `294` at the cursor. ## Tips - In insert mode, ` =` opens the expression prompt directly - Any Vimscript function works: `"=strftime('%H:%M') p` - `"=@a p` evaluates register `a` as an expression - Useful for math, string operations, and dynamic content - `"=system('command') p` inserts shell command output

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`"=2+3p` The expression register `=` evaluates a Vimscript expression and stores the result. You can use it for inline calculations or dynamic text insertion. ## How it works - `"=` enters the expression register prompt in normal mode - Type any Vimscript expression - Press `` to evaluate - `p` pastes the result ## Example To insert the result of 42 * 7: ```vim "=42*7p ``` Inserts `294` at the cursor. ## Tips - In insert mode, `=` opens the expression prompt directly - Any Vimscript function works: `"=strftime('%H:%M')p` - `"=@ap` evaluates register `a` as an expression - Useful for math, string operations, and dynamic content - `"=system('command')p` inserts shell command output

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