every time someone says they're bad at math I feel an urge to help them understand math better and usually they don't want that

@Felthry

I'm having trouble with Calc 3, and I think it's because vectors are that special combination of "I've done this a million times" and "specific technique that looks like 3+ others, but each has a very different purpose so you can't mix them up ever."

@Tathar if you want some help I'll gladly provide it

@Felthry

Yes please. I need practice with tangent vectors, normals, binormals, and some other stuff.

@Tathar okay, binormal is not a term we're familiar with; whatever it is, it isn't something that's come up in our work. we probably learned about it a few years ago and forgot

so, tangent and normal to what, anyway?

@Felthry

I'll have to look up my notes after class.