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What is the meaning of a function with 3 variables. If all 3 variables are x, y and z, do we get volume or something physically different?
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(x,y) -> 2D (x,y,z) --> 3D
If z (f(x,y)) is a dependent variable, then yes. It's in R3 :-)
I'm going to retake linalg, my teacher was horrible and I had no tutor or anyone else to help me that could really explain the stuff :-(
ya linear algebra was annoying
Oh and I think (not completely sure though) that R4 represents density.
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Btw, are you in multivar. calc now?
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