I'm not dumb anymore!

Or at least, I totally rock the house at playing with matrices, which is what my new student is doing in her high school pre-algebra class. Also, there was a beautiful, brief shining moment where I got to explain exactly what she was creating by computing the (multiplicative) inverse of a matrix, and how A^-1(A) = I = A(A^-1) is just like x^-1(x) = 1 = x(x^-1) where x^-1 = ¹/_x, and both A^-1 and x^-1 are unique for A and x respectively. "Really?" she said, and damned if I didn't feel like the coolest thing since ice cream sandwiches, just for a second. Wooo!

Yep, I'm a dork. A big dork. But right now, I'm really proud of that fact.