Math Challlenge: Deming Regression for 2 independent variables

[ttw]

This is a rather common problem but the computations are not as simple as in the two-dimensional case where one variable is exact. The problem of "best fit" to curves in high dimensions seems popular.

https://www.sciencedirect.com/science/ar...2703004485

https://ieeexplore.ieee.org/stamp/stamp....er=8674762

One can find other discussions looking for "orthogonal least squares."