- #1
LearninDaMath
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Suppose I have a vector with components 4[itex]_{y}[/itex] and 0[itex]_{x}[/itex], how do I calculate the angle of that vector? arctan(4/0) = error? Am I supposed to just know that any vector with a y component of some value and an x component of 0 will automatically be vertical with a 90 degree angle?
Edit: I mean, trigonometrically, I think I understand why it would be 90 degrees (just looking at the unit circle), but just want to confirm that this is the in fact the case everytime since it's looking like a calculator is not going to help.
Edit: I mean, trigonometrically, I think I understand why it would be 90 degrees (just looking at the unit circle), but just want to confirm that this is the in fact the case everytime since it's looking like a calculator is not going to help.
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