topic Re: How do I change the graph in the attached file so that points are all 1 microsecond apart? in Mathcad

How do I change the graph in the attached file so that points are all 1 microsecond apart?

DJV — Sat, 11 Nov 2023 02:40:45 GMT

How do I change the graph in the attached file so that points are all 1 microsecond apart?

Using MathCAD 9.0, PTC. The latest.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

Werner_E — Sat, 11 Nov 2023 05:24:12 GMT

@DJV wrote:

How do I change the graph in the attached file so that points are all 1 microsecond apart?

Using MathCAD 9.0, PTC. The latest.

How could you ask for microseconds? Your sheet does not make use of any units at all - just numbers.

And then ... which "points" are you referring to?

Here is a function used for the plot you created. i used arbitrary units for demonstration only.
Maybe you are looking for something similar?

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

ttokoro — Sat, 11 Nov 2023 04:56:47 GMT

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

ttokoro — Sat, 11 Nov 2023 09:24:32 GMT

RL circut responce.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

DJV — Sat, 11 Nov 2023 16:45:56 GMT

Okay, this is my first day working with MathCAD. This is what I've got. How do I make it work?

I don't know how to clear up the program problem by inputting the variable range for t.

This is my first attempt to use programming in MathCAD.

In other words....Help! Help!

Thanks.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

DJV — Sat, 11 Nov 2023 16:50:26 GMT

Thanks for trying to help, but this is my first day with MathCAD, and learning to program is a little much for me.

I did type in most of what you did, but didn't understand why I'd want to have Siemens and Farads as the output values..

Thanks for the help!

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

DJV — Sat, 11 Nov 2023 16:58:38 GMT

If someone could just show me how to get what I've done to plot properly, I'd be very grateful.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

DJV — Sat, 11 Nov 2023 17:50:21 GMT

I tried to use the original approach, but the FFT doesn't make sense if it doesn't know that I'm entering values in microseconds. I need to know what DFT is producing in terms of the value of the X axis variables for frequency if I only enter integer value for n. Here's the spreadsheet. Help! Help! Thank you!

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

Werner_E — Sat, 11 Nov 2023 23:41:32 GMT

@DJV wrote:

Thanks for trying to help, but this is my first day with MathCAD, and learning to program is a little much for me.

I did type in most of what you did, but didn't understand why I'd want to have Siemens and Farads as the output values..

Thanks for the help!

Your initial question was just about the plot and about a time (microseconds) -> "How do I change the graph in the attached file so that points are all 1 microsecond apart?"

Your sheet did not use any units, so I thought that you wanted the values you used for your various ranges to be time values in microseconds. For demonstration I added just an arbitrary unit for the y-axis of the plots and settled for Farad (as good as any) which of course automatically forced me to use Siemens for the factors of the time values.
Just an example and the point was that you only can demand something to be in microseconds when you use units and not when you just use dimensionless values.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

ttokoro — Sun, 12 Nov 2023 00:34:58 GMT

t should be...

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

ttokoro — Sun, 12 Nov 2023 00:43:02 GMT

This id DC factor of the signal.

Re: How do I change the graph in the attached file so that points are all 1 microsecond apart?

ttokoro — Sun, 12 Nov 2023 01:08:12 GMT

Shows the fundamental factor of the signal.