I'm doing some code and I had to map a value from one range [OldMin, OldMax] to another [NewMin, NewMax].
I came across with this answer:
newValue = (((oldValue - oldMin) * (newMax - newMin)) / (oldMax - oldMin)) + newMin
I would like to know how is this mathematical concept called, some sources says it's called "Linear interpolation" others says this is "Linear convertion", but nothing clear. And also I am curious about who found this concept and its mathematical proof.
Thank you so much.