Dot product between Spherical and Rectangular.

Context: Undergrad
Thread starter Oscargot
Start date Feb 8, 2009
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Dot Dot product Product Rectangular Spherical

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Oscargot

Thread starter
Feb 8, 2009

Hello, I just have a question about dot products of different coordinate systems.
I was wondering if anyone can explain why unit vector z(rect.) DOT unit vector r(spherical) is equal to cos(theta). As well, I was hoping if anyone could explain z DOT (Theta) = -sin(theta)?

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Feb 8, 2009

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Dot product between Spherical and Rectangular.

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