MathCAD oddities

Uku

Hello!

I'm having the following problem;


I try to plot a 1D matrice with a sequence, or a 1D matrice and I get a result that "this value must be real". Now.... what!?

I am using MathCAD 14.

Help is much appreciated,
Uku

I like Serena

I see your matrix has an unspecified index "abi".
Remove the index "abi" from M, and it should work a lot better.
I'm assuming you want i to iterate over the values in M.

Also, if you want to do something with i in the definition of M, you need to make sure i is in the document before M, otherwise MathCAD will think i is the imaginary number sqrt(-1).

[Edit]How did you define i? Did you type i:1;12 (which is the proper way)?[/Edit]

If you really want, you can put an index "abi" in as just a name without symbolic function.
To do this I believe you need to type M.abi instead of M[abi.

Uku

Hoi!

Thanks for the reply, the problem is solved.

Sincerely,
Uku

dawidk89

Hello

Help me !!!
My mathcad all the time show THIS VOLUE MUST BE REAL. This is my equation:
http://www.physicsforums.com/attachm...1&d=1350934907


THX for help

Attached Thumbnails

 

Excognito

I can't see the entire plot to try and work out what you've done ... posting a worksheet as well as an image is generally helpful as several problems are not obvious from just a screenshot (also saves respondents typing things in). Try plotting F(10) against F(10), or assiging F(10) to a variable and plotting that using a standard range variable technique.

See attached Mathcad 11 format file.

Attached Thumbnails

 

Attached Files

phys - 12 10 22 plot vector function.mcd (11.3 KB, 1 views)

dawidk89

Excognito Thanks for your help

NemoReally

Kein Problem.