Finally filled in my Devious Information fields (most of them, anyway).
I have a math test tomorrow. In studying, I made up my own 3x3 matrix. The objective was to find its inverse. I followed the formula, to the best of my knowledge. Then, I proceeded to check my inverse. To do so, I dot product-ed my original matrix by the inverse (AA^-1), the answer of which should be the identity matrix ([1, 0, 0 0, 1, 0 0, 0, 1]).
I didn't even get past the first line before I discovered that I wasn't getting the right information.
God, damn it, I do NOT want to take Linear Algebra a third time (I already have to take Calc 1 a third time because