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could you please tell me how to count polar angle of a point with respect to another one using cross product?

I know that polar angle of a point [itex]p_0[/itex] with respect to point [itex]p_1[/itex] is the angle of vector [itex]p_1 - p_0[/itex].

For example, polar angle of(3,3)with respect to(2,4)is the angle of(1,-1)which is 315 degrees or [itex]\frac{7 \pi}{4}[/itex] radians.

How to count it using cross product?

Thank you.

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# Homework Help: The polar angle of a point with respect to another

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