Help with Plotting a 1D Matrice in MathCAD 14

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Uku
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Hello!

I'm having the following problem;
[PLAIN]http://www.hot.ee/jaaniussikesed/probleem_graafik.jpg

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
 
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on Phys.org
Uku said:
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 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.
 
Hoi!

Thanks for the reply, the problem is solved.


Uku
 

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dawidk89 said:
Hello

Help me !
My mathcad all the time show THIS VOLUE MUST BE REAL. This is my equation:
https://www.physicsforums.com/attachment.php?attachmentid=52208&stc=1&d=1350934907


THX for help

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.

attachment.php?attachmentid=52213&stc=1&d=1350941057.jpg
 

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Excognito Thanks for your help