Signals and Systems

#21 Posted: 8/28/2017 2:28:47 PM

Oscar Campo

135 likes in 309 posts.

Group: Moderator

Wrote

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

983 likes in 6,866 posts.

Group: User

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

983 likes in 6,866 posts.

Group: User

Wrote
The most common is "allvalues".

#24 Posted: 8/29/2017 8:13:02 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
"assume" is often needed

#25 Posted: 7/5/2018 6:00:06 AM

Adriaan Knox

0 likes in 25 posts.

Group: User

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

983 likes in 6,866 posts.

Group: User

Wrote
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 420 time(s).
Inst_PID Discrete State Systems.sm (25.51 KiB) downloaded 482 time(s).
Inst_PID DynSys.sm (14.9 KiB) downloaded 467 time(s).
Inst_PID [PI, PID].sm (71.51 KiB) downloaded 422 time(s).
Inst_PID [P, PD].sm (106.94 KiB) downloaded 401 time(s).
Inst_PID Feedback Attenuator.sm (43.76 KiB) downloaded 472 time(s).
Inst_PID [MCD Model].sm (177.96 KiB) downloaded 399 time(s).
Inst_TurboGen Smath.sm (106.19 KiB) downloaded 473 time(s).
ODE_Laplace Read First.sm (27.41 KiB) downloaded 483 time(s).
Inst_TurboGen Signum.sm (91.08 KiB) downloaded 481 time(s).
Inst_PID Discrete Schema.sm (166.36 KiB) downloaded 500 time(s).
ODE_Laplace 1rst [Type 1].sm (24.7 KiB) downloaded 405 time(s).
Inst_XFR 2nd [XFR nth].sm (34.08 KiB) downloaded 414 time(s).
ODE_Laplace 1rst [Type 2].sm (22.5 KiB) downloaded 444 time(s).
Inst_PID DynSys_v01 (1).sm (235.59 KiB) downloaded 474 time(s).
ODE_Laplace 2nd [Type 3].sm (33.42 KiB) downloaded 423 time(s).
ODE Laplace Kinetic Reaction.sm (93.13 KiB) downloaded 461 time(s).

#27 Posted: 7/5/2018 11:11:33 AM

Arie

94 likes in 285 posts.

Group: User

Wrote
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 579 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

135 likes in 309 posts.

Group: Moderator

Wrote

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

Page1.sm (44.98 KiB) downloaded 579 time(s).

Bravo! Alyles, simple and beautiful!!

#29 Posted: 7/5/2018 1:04:44 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

You may attack for an export solution.

#30 Posted: 7/6/2018 8:56:39 PM

Basile

8 likes in 172 posts.

Group: User

Jean,
What why the invlaplace I get a dot?
Inverse Laplace-1.sm (4.08 KiB) downloaded 483 time(s).

Basile

#31 Posted: 7/6/2018 9:30:07 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
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

8 likes in 172 posts.

Group: User

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 457 time(s).
Basile

#33 Posted: 7/7/2018 2:28:49 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
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

8 likes in 172 posts.

Group: User

Jean,
Can you be more specific?
Basile

#35 Posted: 7/12/2018 11:15:48 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
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

8 likes in 172 posts.

Group: User

My glasses arrived!
Thank you,
Basile

#37 Posted: 8/23/2018 8:53:31 PM

Adriaan Knox

0 likes in 25 posts.

Group: User

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 209 time(s).

#38 Posted: 8/24/2018 12:30:05 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
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 459 time(s).
open loop gain from closed loop gain 2.sm (48.32 KiB) downloaded 442 time(s).

#39 Posted: 9/21/2018 6:23:31 AM

Alvaro Diaz Falconi

1,059 likes in 1,724 posts.

Group: User

Wrote
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 474 time(s).

Best regards.
Alvaro.

#40 Posted: 9/21/2018 11:43:32 AM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote
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 474 time(s).

SMath Forum

Signals and Systems - Example of use of SMath for signals and systems analysis - Messages