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M
MUFASA1-Visitor
1-Visitor
March 22, 2021
Question

Mathcad Prime 7.0 Plotting fails while in Mathcad v15 it successfully plots

  • March 22, 2021
  • 2 replies
  • 2711 views

I have been plotting current passing w.r.t time in Mathcad Prime 7.0. But it gives the message, "Plotting failed, Replace complex values and NaNs by real numbers". It is a simple program and there are no complex values and NaNs. I can't figure out what's the reason for this failure.

1.png

But when I plot the same program in Mathcad v15 it plots successfully with no error. I am wondering whats the problem with Mathcad Prime 7.0. Is it a bug?

2.png

2 replies

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
March 22, 2021

One of the things Mathcad 15 would do that Prime won't is automatically plot from -10 to 10 if a graph denominator was not defined.  Your issue has a simple fix:

Fred_Kohlhepp_0-1616414133888.png

 

M
MUFASA1-VisitorAuthor
1-Visitor
March 22, 2021

@Fred_Kohlhepp  As far as my experience is concerned prime can automatically plot from -10 to 10 same as Mathcad v15. Moreover in this problem when I undo the units of microseconds it plots automatically.  I can't figure out why it does so? 

1.png

Also if we define a range variable the file size increases 5 folds. It is not feasible if we have a lot of plots in the worksheet.

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
March 22, 2021

Sorry!  Thought I had your answer.  I can recognize your concerns, but I like to carry units whenever I can.  

 

I set out to see how little I had to modify your sheet to get the plot to work.  See if the attached will help:

Fred_Kohlhepp_1-1616417050435.png

 

L
LucMeekes23-Emerald IV
23-Emerald IV
March 22, 2021

Apparently the automatic variable (t in your case) generated by Prime does not automatically create a unit for it...

 

Luc

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