Contour Integral Dummy Style

#1 Posted: 2018/12/10 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) downloaded 622 time(s).

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

Fridel Selitsky

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Tiny fix
Inst_PID Discrete Schema EXAMPLE_6.sm (39.17 KiB) downloaded 624 time(s).

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frapuano 2018/12/10 16:55:00

#3 Posted: 2018/12/10 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) downloaded 622 time(s).

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) downloaded 586 time(s).

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frapuano 2018/12/10 16:55:00

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

Davide Carpi

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fixed

Inst_PID Discrete Schema EXAMPLE_6 - fixed.sm (46.19 KiB) downloaded 667 time(s).

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 2018/12/10 20:37:00

#5 Posted: 2018/12/10 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 Posted: 2018/12/11 00:50:47

Jean Giraud

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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 Posted: 2018/12/11 01:04:47

Jean Giraud

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... like this:

#8 Posted: 2018/12/11 04:44:48

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 Posted: 2018/12/13 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) downloaded 662 time(s).

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frapuano 2018/12/13 19:41:00

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