why is it called left nullspace if it's on the right when you draw the picture of the subspaces (did the mathematicians fuck up like benjamin franklin messed up the positive and negative current)
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Anonymous2009-12-22 23:04
when you draw the picture of the subspaces
What the fuck are you talking about? You think the way they organize those diagrams has any meaning at all? Or am I missing something?
It's called the left-hand nullspace because notationally you apply the vector on the left of the transformation instead of the right (as usual).
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Anonymous2009-12-23 0:55
well A represents a linear transformation from R^n to R^m and the left nullspace is a subspace of R^m so it's on the right when you draw the subspace picture
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Anonymous2009-12-23 3:22
>>2
oh i think i get it now, because you use y^tA=0 to find y in the nullspace. I was looking at it from the A^ty=0 point of view.(because it's written N(A^t) )
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Anonymous2009-12-23 9:53
That's kinda like left and right singular vectors. The notation can be confusing if you think of it the wrong way