Issue with plot - These array elements must be scalars. They cannot be vector or matrix

Forum|Forum|4 years ago
January 15, 2022
7 replies
3437 views

Hi,

I have just started using Prime 7 instead of Mathcad 15 and have to convert all my files. The issue is after solving a system of equations, the solutions I get are part of the solution vector I guess. I can perform calculations but cannot plot due to the error mentioned in the title. I have seen similar topics here, but I cannot find a way to solve my issue. I figure it is simple and straightforward.

The file

is attached.

Thanks in advance.

Ali

1_Test.zip

Best answer by terryhendicott

Hi,

Matrices of one element are formed as part of the calculations.

Simply use the zero index to get a number for a and a complex number for d.

T

terryhendicott

Answer

21-Topaz II

Hi,

Matrices of one element are formed as part of the calculations.

Simply use the zero index to get a number for a and a complex number for d.

1_220115-Plot.zip

A

Ali_Ihsan

Author

1-Visitor

Thanks a lot. I understand now. If may ask, how do I modify the graph to change the number of ticks, labels, legend,s etc. the plot bar seems quite limited.

W

Werner_E

25-Diamond I

@Ali_Ihsan wrote:

Thanks a lot. I understand now. If may ask, how do I modify the graph to change the number of ticks, labels, legend,s etc. the plot bar seems quite limited.

Yes, Primes native plots are very limited. There is no option for showing grids, labels or legends.
But, while not obvious, you can change the first, second and last value for each axis and so you can at least control the number of ticks.

Another option is to use the third party plot component (chart component) which PTC had (quite badly) integrated into Prime since vers version 5 instead of improving their own native plots. This component is rather slow and un-intuitive, does not support units and has its scaling problems with certain combinations of screen resolution and Windows zoom factor. But it supports a secondary y-axis, labels and legends (I think) and the display of grid lines.
So you may want to give it a try and see if it fits your need better than the native 2D-plot.