default math node

I'm asking if it is all possible for a very basic math node to be included in the core comfyui installation.

There are situations where it would be very useful like calculating the base/refiner ratio on the fly and in area conditioning (for size of the latent and position of the conditioning).

I understand there are plugins for that but --apart from being a very basic functionality-- it is sometimes useful to have them integrated in the main config when sharing workflows (especially with new comers).

I did a quick proof of concept here https://github.com/cubiq/ComfyUI_SimpleMath (it goes in `utils/math op`).


As you can see with just one node you can handle both operations and variables so everything would be extremely contained, but anyway any implementation would be welcome in any form :) thanks!