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Einhorn1-Visitor
1-Visitor
April 16, 2012
Question

Plot won't evaluate unless a calculated function explictly defined

  • April 16, 2012
  • 2 replies
  • 3841 views

Hello,

Please see the attached MCAD worksheet.

The function alpha (t) has a variable alpha max that is previously defined. Alpha max carries units with it and those units appear correct. In the sheet I can only get the plot for omega to work by manually setting Alpha max to a value with the correct units (1/s^2).

I cannot figure out why the program is doing this. If anybody can assist that would be greatly appreciated!

Thank you,

Mike

2 replies

A
AlanStevens19-Tanzanite
19-Tanzanite
April 16, 2012

The symbolic solver doesn't like units. I suggest you tackle the problem as in the attached.

Alan

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Einhorn1-VisitorAuthor
1-Visitor
April 16, 2012

Thanks Alan. I see. I can get it to run if I do those substitions. I can also get it to run if I make it dependent on T. I would like to not have to do this so I can see the explicit values of the evaluated function without the variables in them.

A
AlanStevens19-Tanzanite
19-Tanzanite
April 16, 2012

Michael Einhorn wrote:

Thanks Alan. I see. I can get it to run if I do those substitions. I can also get it to run if I make it dependent on T. I would like to not have to do this so I can see the explicit values of the evaluated function without the variables in them.

I guess Wayne is using M15 (M010). Looks like you will have to upgrade to that if you want to see the explicit values all the time!

Alan

W
wayne12-Amethyst
12-Amethyst
April 16, 2012

Am I missing something?
It works for me (M15)

tmp9.gif

E
Einhorn1-VisitorAuthor
1-Visitor
April 16, 2012

Hello Wayne,

I am running M14...I wonder if that is the issue?

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