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It is for fun. Commercial products do not support this because functions are generally not invertible.
by esafak 11mo ago
It is for fun. Commercial products do not support this because functions are generally not invertible.
- dmurray 11mo agoI would expect the opposite. Commercial products are run by product managers: they do whatever the business needs that day, and if it doesn't work for most inputs, "that's fine, our users will only ever need addition". Fun open source projects, run by the same programmer who does the implementation, obsess over finding the generic solution to inverting a function and end up with a version that isn't useful for anyone's specific case.
- esafak 11mo agoYou can't even invert addition. If A+B=C and you change C, you can not infer A and B without making assumptions, like scaling them equally.