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1-Newbie

## Vector Question 2

Hi there,

Here are a couple of small problems I am having calculating the smallest angle between vectors.

Not sure if it is me or the book (misprint on answers).

Best regards

Lea
2 REPLIES 2
23-Emerald I
(To:Beckley-disable)
Your coordinate systems are the problem; in cylindrical coordinates the second coordinate is an angle, in spherical coordinates two of the coordinates are angles. Mathcad dot product operation assumes cartesian coordinates. Two solution possibilities:
--convert to cartesian coordinates, or

--define the dot product in cylindrical and spherical coordinates.

Fred Kohlhepp
fkohlhepp@sikorsky.com
Many thanks Fred
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