Help me get matrix multiplication? (Intuitively understand.) I’ve asked google and read through http://math.stackexchange.com/questions/31725/what-does-matrix-multiplication-actually-mean and similar pages&articles , and I get what linear functions mean. I’ve had it explained in terms of transformation matrices and I get how those work and I’m somewhat familiar with them from opengl. But it’s always seemed like additional complexity that happens to work (and sometimes happens to work in a cute way) because it’s this combination of multiplication and addition, and a lot of algorithms involve a bunch of multiplication and addition at some point.
I used to not get trigonometric functions either; I could compute them and I got certain things they did and I did see that there wasn’t really other stuff that could do what they could do, but a lot of stuff like secant seemed totally arbitrary, but then I asked a prof and he was all “geometric interpretation!” and then it clicked. I think.
Help me get matrix multiplication? (Intuitively understand.) I’ve asked google and read through http://math.stackexchange.com/questions/31725/what-does-matrix-multiplication-actually-mean and similar pages&articles , and I get what linear functions mean. I’ve had it explained in terms of transformation matrices and I get how those work and I’m somewhat familiar with them from opengl. But it’s always seemed like additional complexity that happens to work (and sometimes happens to work in a cute way) because it’s this combination of multiplication and addition, and a lot of algorithms involve a bunch of multiplication and addition at some point.
I used to not get trigonometric functions either; I could compute them and I got certain things they did and I did see that there wasn’t really other stuff that could do what they could do, but a lot of stuff like secant seemed totally arbitrary, but then I asked a prof and he was all “geometric interpretation!” and then it clicked. I think.