Contour Integral Dummy Style

#1 Publicado: 10/12/2018 13:39:00

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Can't manage this otherwise than shitting bricks !
Solution is welcomed ... Thanks

Done otherwise to rescue the Document.

Inst_PID Discrete Schema EXAMPLE_6 Failed.sm (36,61 KiB) descargado 1264 vez(es).

#2 Publicado: 10/12/2018 14:15:29

Fridel Selitsky

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Tiny fix
Inst_PID Discrete Schema EXAMPLE_6.sm (39,17 KiB) descargado 1224 vez(es).

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frapuano 10/12/2018 16:55:00

#3 Publicado: 10/12/2018 15:55:07

Arie

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Wrote
Can't manage this otherwise than shitting bricks !
Solution is welcomed ... Thanks

Done otherwise to rescue the Document.

Inst_PID Discrete Schema EXAMPLE_6 Failed.sm (36,61 KiB) descargado 1264 vez(es).

In order to pass functions as inputs to other functions you need to declare it as such and pass a "dummy" variable. See following.
There is still a problem in that it is not evaluating properly, I believe.

Inst_PID Discrete Schema EXAMPLE_6_Partlyfixed..sm (44,75 KiB) descargado 1253 vez(es).

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frapuano 10/12/2018 16:55:00

#4 Publicado: 10/12/2018 20:29:36

Davide Carpi

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fixed

Inst_PID Discrete Schema EXAMPLE_6 - fixed.sm (46,19 KiB) descargado 1286 vez(es).

2018-12-11 00_34_33-SMath Studio - [Inst_PID Discrete Schema EXAMPLE_6 - fixed.sm].png

removed answer requested for first argument of the last system;
used f(number_of_arguments) function of function argument (more elegant, point out that the variable name doesn't matter);

P.S. To obtain similar results, change the integration accuracy to something higher than 100

2018-12-11 00_53_52-SMath Studio - [Inst_PID Discrete Schema EXAMPLE_6 - fixed.sm_].png

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Arie 10/12/2018 20:37:00

#5 Publicado: 10/12/2018 23:05:36

Arie

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Wrote
fixed

removed answer requested for first argument of the last system;
used f(number_of_arguments) function of function argument (more elegant, point out that the variable name doesn't matter);

Dumb question maybe, but how do you get the '#' to show up in the H(#) function call?

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#6 Publicado: 11/12/2018 0:50:47

Jean Giraud

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Wrote
Dumb question maybe, but how do you get the '#' to show up in the H(#) function call?

As simple as that: x(n,X(▄)) ... simply the native dummy argument
big square imitation Alt220 ... try it.

Thanks all you Doctors ! Just refreshing that huge collection
of PID examples, coming soon.

Jean

#7 Publicado: 11/12/2018 1:04:47

Jean Giraud

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... like this:

#8 Publicado: 11/12/2018 4:44:48

Davide Carpi

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Wrote
Dumb question maybe, but how do you get the '#' to show up in the H(#) function call?

CTRL+K then #

:d

Wrote
big square imitation Alt220

another option, yes

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#9 Publicado: 13/12/2018 19:02:18

Alvaro

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Hi. This is the setup for use inverse laplace transform for numerically evaluate the response for a system in z domain.
Best regards.
Alvaro.
pid_controler z.sm (50 KiB) descargado 1259 vez(es).

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frapuano 13/12/2018 19:41:00

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