- #1
aaaa202
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My teacher often writes for a scalar function F:
dF = [itex]\nabla[/itex]F [itex]\bullet[/itex] dr
Why is it you are allowed to do this. Shouldn't you use the pythagorean theorem?
dF = [itex]\nabla[/itex]F [itex]\bullet[/itex] dr
Why is it you are allowed to do this. Shouldn't you use the pythagorean theorem?