[idiotsecant]

There's a lot of fluffly language here that isn't saying much.

Linear algebra is not something that takes years of patient study to gain basic competency. It had almost no prerequisites and can be understood enough to understand least squares in a focused weekend or two.

[bradly]

Thank you for the encouragement. I'll will take a week or two and spend some time with some focused learning. Do you have any recommendations where to start?