The first program I used with math on input was alphacam, it was mind blowing to me when I discovered it. Any time I use a program with out it now it feels lack

The first program I used with math on input was alphacam, it was mind blowing to me when I discovered it. Any time I use a program with out it now it feels lacking. The Godot editor has this feature too, just to drop another great piece of open source software with it.