How to translate YIQ XYZ and YIQ Lab?

Question

Working with color

There is a task in which you need to translate from YIQ to XYZ (and vice versa) and YIQ to Lab (and vice versa). I can't find the formula. I found it for all sorts of color schemes, but I can’t specifically for YIQ, tell me please.

Answer 1

cs.haifa.ac.il/hagit/courses/ist/Lectures/Demos/Co... scroll down

Answer 2

How not? Yes, even Wikipedia has:
https://en.wikipedia.org/wiki/YIQ#Formulas