Signals and Systems

#21 Posted: 8/28/2017 2:28:47 PM

Oscar Campo

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However I've edited the link, now it downloads the file, whatever is your favorite browser.

Thanks Davide!!

#22 Posted: 8/28/2017 8:58:29 PM

Jean Giraud

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Thanks Davide for the WS.

"assume" is often needed as well as "real".
The most common is "allvalues". It expands
the more general RootOf.

#23 Posted: 8/29/2017 7:30:28 AM

Jean Giraud

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The most common is "allvalues".

#24 Posted: 8/29/2017 8:13:02 AM

Jean Giraud

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"assume" is often needed

#25 Posted: 7/5/2018 6:00:06 AM

Adriaan Knox

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I'm still trying to get the hand of this software. I'm an e.e. undergraduate and would like to be able to perform the something like the mathcad at the end of this post. I did try to input a similar syntax but I'm too much of a noob to work it. Can anyone shed some light on this for me?

The post shows a trasfer function solved for the poles and zeros... It looks like you have to know how many poles and zeros to solve for before getting going. That would require putting the transfer function in standard form I'm somewhat sure.

https://electronics.stackexchange.com/questions/243435/bode-plot-of-transfer-function?rq=1

#26 Posted: 7/5/2018 8:37:52 AM

Jean Giraud

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I'm still trying to get the hand of this software. I'm an e.e. undergraduate and would like to be able to perform the something like the mathcad at the end of this post. I did try to input a similar syntax but I'm too much of a noob to work it. Can anyone shed some light on this for me?

The post shows a trasfer function solved for the poles and zeros... It looks like you have to know how many poles and zeros to solve for before getting going. That would require putting the transfer function in standard form I'm somewhat sure.

All documents attached are in Smath 6179, should work same imore recent version(s).
The Smath/Maple companions of this year [2018] work a bit different than Mathcad 11 [2003].
At the end, all attached documents work for me Smath 6179 same as my former Mathcad 11.

Inst_PID [ODE].sm (24.75 KiB) downloaded 602 time(s).
Inst_PID Discrete State Systems.sm (25.51 KiB) downloaded 683 time(s).
Inst_PID DynSys.sm (14.9 KiB) downloaded 649 time(s).
Inst_PID [PI, PID].sm (71.51 KiB) downloaded 582 time(s).
Inst_PID [P, PD].sm (106.94 KiB) downloaded 561 time(s).
Inst_PID Feedback Attenuator.sm (43.76 KiB) downloaded 661 time(s).
Inst_PID [MCD Model].sm (177.96 KiB) downloaded 575 time(s).
Inst_TurboGen Smath.sm (106.19 KiB) downloaded 688 time(s).
ODE_Laplace Read First.sm (27.41 KiB) downloaded 681 time(s).
Inst_TurboGen Signum.sm (91.08 KiB) downloaded 703 time(s).
Inst_PID Discrete Schema.sm (166.36 KiB) downloaded 716 time(s).
ODE_Laplace 1rst [Type 1].sm (24.7 KiB) downloaded 588 time(s).
Inst_XFR 2nd [XFR nth].sm (34.08 KiB) downloaded 593 time(s).
ODE_Laplace 1rst [Type 2].sm (22.5 KiB) downloaded 634 time(s).
Inst_PID DynSys_v01 (1).sm (235.59 KiB) downloaded 684 time(s).
ODE_Laplace 2nd [Type 3].sm (33.42 KiB) downloaded 598 time(s).
ODE Laplace Kinetic Reaction.sm (93.13 KiB) downloaded 669 time(s).

#27 Posted: 7/5/2018 11:11:33 AM

Arie

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I'm still trying to get the hand of this software. I'm an e.e. undergraduate and would like to be able to perform the something like the mathcad at the end of this post. I did try to input a similar syntax but I'm too much of a noob to work it. Can anyone shed some light on this for me?

Here's an example of how one might attack it.

Page1.sm (44.98 KiB) downloaded 808 time(s).

Feel free to join the SMath Studio Users Discord Channel: https://discord.gg/PayZpJW

#28 Posted: 7/5/2018 12:58:56 PM

Oscar Campo

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Here's an example of how one might attack it.

Page1.sm (44.98 KiB) downloaded 808 time(s).

Bravo! Alyles, simple and beautiful!!

#29 Posted: 7/5/2018 1:04:44 PM

Jean Giraud

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You may attack for an export solution.

#30 Posted: 7/6/2018 8:56:39 PM

Basile

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Jean,
What why the invlaplace I get a dot?
Inverse Laplace-1.sm (4.08 KiB) downloaded 682 time(s).

Basile

#31 Posted: 7/6/2018 9:30:07 PM

Jean Giraud

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Jean,
What why the invlaplace I get a dot?

Basile, mon ami, you need a new pair of glasses !

Just code as the snippet, it will gladly work for Basile.

Cheers ... Jean

#32 Posted: 7/7/2018 11:57:01 AM

Basile

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Jean,
Until I get my new pair, I see that a dot appears after the F(s) when I type a comma.
Any diagnosis?
Inverse Laplace-2.sm (4.25 KiB) downloaded 647 time(s).
Basile

#33 Posted: 7/7/2018 2:28:49 PM

Jean Giraud

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Jean,
Until I get my new pair, I see that a dot appears after the F(s) when I type a comma.
Any diagnosis?

Check from "Options" if you can fix .

#34 Posted: 7/12/2018 8:05:19 PM

Basile

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Jean,
Can you be more specific?
Basile

#35 Posted: 7/12/2018 11:15:48 PM

Jean Giraud

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Jean,
Can you be more specific?
Basile

From the menu tool bar up top work sheet:
Tools => Options => Interface => Arguments separator [period, coma, semicolon]

#36 Posted: 7/13/2018 9:21:09 AM

Basile

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My glasses arrived!
Thank you,
Basile

#37 Posted: 8/23/2018 8:53:31 PM

Adriaan Knox

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After doing my best to incorporate sMath into my University workload for the past 6 months. From my magnetism class to my analog circuits class here at the University of California at Santa Cruz but it has been my experience that for every line of code I write that I generate many more while trying which are unproductive. I think the efforts made on this program are exemplary and I've donated $10 but I think unfortunately I will not be able to continue with it due to the learning curve being so steep.

People have done some amazing things with it that I can't even begin to follow but I haven't been as successful. Perhaps as I become more competent I might be more successful but for now I think I will unfortunately have to hang up my hat gentlemen... I bid you a respectful adieu for the time being kind Sirs...

File not found.File not found.
magnetism.zip (5.26 MiB) downloaded 248 time(s).

#38 Posted: 8/24/2018 12:30:05 AM

Jean Giraud

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Perhaps as I become more competent I might be more successfu

I have doctored few things in these two documents.

hw 2.6.sm (133.49 KiB) downloaded 658 time(s).
open loop gain from closed loop gain 2.sm (48.32 KiB) downloaded 641 time(s).

#39 Posted: 9/21/2018 6:23:31 AM

Alvaro Diaz Falconi

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Hi, this is a snippet for numerical inverse Laplace transform. You can find time response of a system expresed in F(s) form.

enjoy

Oscar Campo

Hi. Enjoyed & Improved. Six years later.

InvLaplace2.sm (93.88 KiB) downloaded 682 time(s).

Best regards.
Alvaro.

#40 Posted: 9/21/2018 11:43:32 AM

Jean Giraud

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Enjoyed

Thanks Alvaro for your dedication,

Does syntax error 6179, but does not to where it complains.
Don't worry, OK like this.
The 2nd example is lot more involved, correct [sanity MCD].

Cheers ... Jean

InvLaplace2 Otherwise.sm (27.68 KiB) downloaded 698 time(s).

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