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1-Visitor
October 24, 2017
Question

"Value must be real" error, simple graphing task

  • October 24, 2017
  • 2 replies
  • 3424 views
Hi everyone,
 
I am attempting to plot one column vector against another (one contains my x values and the other contains my intended y values). I embedded an excel sheet into mathcad and added units to the data. When trying to plot two vectors of the same length, I get "value must be real" error. There is nothing complex in my calculations. Im sure this is something simple, please help!
Thanks,
Chris

2 replies

21-Topaz II
October 25, 2017

Hi,

 

You have done everything right bar a subtle position error.

Mathcad calculates to the left and down a sheet.  The graph was above the position where displacement was calculated.

Move you graph down and it calculates.

Cheers

Terry

21-Topaz II
October 25, 2017

Hi,

 

You have done everything right bar a subtle position error.

Mathcad calculates to the left and down a sheet.  The graph was above the position where displacement was calculated.

Move you graph down and it calculates.

Cheers

Terry

21-Topaz II
October 25, 2017

Hi meant to say:

 

 

Mathcad calculates right to the left and down a sheet.

21-Topaz II
October 25, 2017

Mathcad calculates left to right

sorry finally got it right