cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

Vector Question 2

Beckley-disable
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).

Many thanks for your help.

Best regards

Lea
2 REPLIES 2

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
Announcements
Check out the latest
Mathcad Tip
"PTC Mathcad 15 / Prime 1-6 Update."