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In the last two or three weeks, when I multiply by a constant I receive an error message saying the constant must be a 3 element vector.
What version of Mathcad are you using? Can you post a short worksheet that shows the problem (this will both help a reviewer spot any problem and check whether it can be replicated (thus pointing to either your installation or a generic Mathcad problem)?
Stuart
Mathcad 14.0 M020 (14.0.2.5 [802141434])
The operator you are using is the cross product operator, which only works with 3-element vectors. Use the dot product, which you get by typing "*".
You need to use "Multiplication * " instead of "Cross Product Ctrl+8":
Thanks to all who responded. I should have known better.
Jack
No problem.
Hello,
Please attach your Mathcad worksheet to the message (by using "Use advanced editor").