Help! "This variable is undefined"

Forum|Forum|9 years ago
April 8, 2017
2 replies
12497 views

I'm trying to use Mathcad to solve a series of equations. I keep getting the error message WhatsApp Image 2017-04-08 at 4.49.36 PM.jpeg "This variable is undefined" Any tips?

2_MEC3045F-A1-xmcd.zip

1_Mathcad-A1.pdf

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Best answer by Werner_E

1) You forgot to type multiplication dots when calculating A.t * (....). If you write A.t(...) then A.t is interpreted as function.

2) You have a unit mismatch in your second equation. The first summand has to be multiplied by a length (I had simply multiplied by 1m which sure is not correct)

W

Werner_E

Answer

25-Diamond I

1) You forgot to type multiplication dots when calculating A.t * (....). If you write A.t(...) then A.t is interpreted as function.

2) You have a unit mismatch in your second equation. The first summand has to be multiplied by a length (I had simply multiplied by 1m which sure is not correct)