Functions as arguments of other functions Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

Previous Topic Next Topic

pwi		#1 Posted : 07 July 2021 14:08:40(UTC)
Rank: Newbie Groups: Registered Joined: 09/08/2019(UTC) Posts: 6 Location: Gdańsk		Hi, in my recent calculations I needed to have a function that takes two funtions as parameters and calculates some values. Something like: k_f(s;c)=s(1)*c(8) k_f(sin; cos)= Trying this in SMath Studio unfortunately failed. Is is possible to implement such a thing in SMath Studio? Yours, Pawel Wierzba
User Profile View All Posts by User View Thanks

	Wanna join the discussion?! Login to your SMath Studio Forum forum account. New Registrations are disabled.

Davide Carpi		#2 Posted : 07 July 2021 14:32:56(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,725 Location: Italy Was thanked: 1393 time(s) in 909 post(s)		Yes it is possible, see the attached image
		If you like my plugins consider to support SMath Studio buying a plan; to offer me a coffee: paypal.me/dcprojects
User Profile View All Posts by User View Thanks

pwi		#3 Posted : 07 July 2021 15:31:23(UTC)
Rank: Newbie Groups: Registered Joined: 09/08/2019(UTC) Posts: 6 Location: Gdańsk		Thank you very much. Indeed, it works, even with functions with more arguments than one. Sorry for asking a question about something that has already been implemented.
User Profile View All Posts by User View Thanks

Jean Giraud		#4 Posted : 07 July 2021 15:36:02(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		Make it infinite algo style.
User Profile View All Posts by User View Thanks

pwi		#5 Posted : 07 July 2021 16:11:06(UTC)
Rank: Newbie Groups: Registered Joined: 09/08/2019(UTC) Posts: 6 Location: Gdańsk		Thank you for the advice. Fortunately, standard way of defining functions is well known to me. Unfortunately, I had to pass functions as arguments, rather than define them the "standard way". I had several functions and some coefficients to be calculated, based on them. Something like the example below. If done the standard way, it would involve a LOT of writing. Edited by user 07 July 2021 16:20:06(UTC)  | Reason: could not get the image to display
User Profile View All Posts by User View Thanks

Jean Giraud		#6 Posted : 07 July 2021 16:49:47(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		Originally Posted by: pwi Unfortunately, I had to pass functions as arguments, rather than define them the "standard way". I had several functions and some coefficients to be calculated, based on them. Something like the example below. Attach the document for understanding that mystic doing.
User Profile View All Posts by User View Thanks

loha		#7 Posted : 07 July 2021 19:23:49(UTC)
Rank: Advanced Member Groups: Registered Joined: 13/09/2011(UTC) Posts: 66 Location: Kolkata Was thanked: 9 time(s) in 9 post(s)		Originally Posted by: Davide Carpi Yes it is possible, see the attached image Beautiful! I wonder why Jean is not so enthousiastic?
User Profile View All Posts by User View Thanks

Jean Giraud		#8 Posted : 07 July 2021 19:28:17(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		... should have been posted ~ 2 hours ago.
User Profile View All Posts by User View Thanks

oscampo		#9 Posted : 07 July 2021 19:31:32(UTC)
Rank: Advanced Member Groups: Registered Joined: 10/12/2009(UTC) Posts: 284 Location: Cali, Colombia Was thanked: 119 time(s) in 81 post(s)		Originally Posted by: pwi Thank you for the advice. Fortunately, standard way of defining functions is well known to me. Unfortunately, I had to pass functions as arguments, rather than define them the "standard way". I had several functions and some coefficients to be calculated, based on them. Something like the example below. If done the standard way, it would involve a LOT of writing. Great! SMath has that awesome characteristic, so you can use that "standard way" for defining functions. Good luck with your job!
		BLOG Facebook Twitter
User Profile View All Posts by User View Thanks

Razonar		#10 Posted : 07 July 2021 21:22:21(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,508 Was thanked: 974 time(s) in 609 post(s)		Originally Posted by: pwi ... I had several functions and some coefficients to be calculated, based on them. Something like the example below. ... If done the standard way, it would involve a LOT of writing. Hi. You can try a for loop with something like this in the body Best regards. Alvaro.
User Profile View All Posts by User View Thanks

Jean Giraud		#11 Posted : 07 July 2021 21:31:59(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		Originally Posted by: pwi If done the standard way, it would involve a LOT of writing. Make it algo style as exemplified. At this point, you are missing a link ... what link ? Before integration, you must plot the integrand. That will avoid the Simpson integrator to result scrap. Visit/search 'Samples' for more integrators [Adaptive, Romberg].
User Profile View All Posts by User View Thanks

Jean Giraud		#12 Posted : 08 July 2021 00:02:38(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)
User Profile View All Posts by User View Thanks

Jean Giraud		#13 Posted : 08 July 2021 02:17:37(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		... Smath is a CAS, an advanced CAS i.e: like competitive CAS, Smath is not a click_click_done.
User Profile View All Posts by User View Thanks

overlord		#14 Posted : 08 July 2021 02:56:00(UTC)
Rank: Advanced Member Groups: Registered Joined: 23/07/2013(UTC) Posts: 1,191 Was thanked: 544 time(s) in 366 post(s)		Originally Posted by: Davide Carpi Yes it is possible, see the attached image Interesting solution, promising to be very useful. I wonder if it could be done with other functions. It would really shorten a lot of thing if was possible. Especially with external plugins function calls. Regards
User Profile View All Posts by User View Thanks

pwi		#15 Posted : 08 July 2021 14:36:54(UTC)
Rank: Newbie Groups: Registered Joined: 09/08/2019(UTC) Posts: 6 Location: Gdańsk		Originally Posted by: Jean Giraud At this point, you are missing a link ... what link ? Before integration, you must plot the integrand. That will avoid the Simpson integrator to result scrap. Visit/search 'Samples' for more integrators [Adaptive, Romberg]. Originally Posted by: Jean Giraud ... Smath is a CAS, an advanced CAS i.e: like competitive CAS, Smath is not a click_click_done. Thank you for help, especially the comment about potential problems with the integrator and illustrative examples. Starting to study other integrators [Adaptive, Romberg], as advised. I wish I could click a few "THANK" buttons for help, but on my two browsers (Opera and Edge) they simply generate an error message.
User Profile View All Posts by User View Thanks

Jean Giraud		#16 Posted : 08 July 2021 15:45:19(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		Originally Posted by: pwi Thank you for help, especially the comment about potential problems with the integrator and illustrative examples. I posted the wrong image ... that's the right one. Don't drop dead by how far simple integration can fly in the blue !
User Profile View All Posts by User View Thanks

Jean Giraud		#17 Posted : 08 July 2021 20:44:44(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 983 time(s) in 811 post(s)		Originally Posted by: pwi Thank you for help, especially the comment about potential problems with the integrator and illustrative examples. The 'thanks' button' never worked. 1. The previous image as *,sm 2. My Integration tool box. Please, don't hesitate for + ... Jean Integral 000000000000 vectorsf(j,k,a,b).sm (14kb) downloaded 15 time(s). Integral 00000000 MASTER ToolBox.sm (478kb) downloaded 14 time(s).
User Profile View All Posts by User View Thanks

overlord		#18 Posted : 08 July 2021 22:25:50(UTC)
Rank: Advanced Member Groups: Registered Joined: 23/07/2013(UTC) Posts: 1,191 Was thanked: 544 time(s) in 366 post(s)		Looks like line() mysteriously solve the issue. I have come across similar to this behavior before. Regards Edited by user 08 July 2021 22:27:22(UTC)  | Reason: Not specified
User Profile View All Posts by User View Thanks

Razonar		#19 Posted : 08 July 2021 23:21:01(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,508 Was thanked: 974 time(s) in 609 post(s)		Originally Posted by: overlord Looks like line() mysteriously solve the issue. ... Hi. For help understanding what's happen: that behavior is similar to the SetDelayed in Wolfram Mathematica language: https://www.wolfram.com/...-and-delayed-values.html Best regards. Alvaro.
User Profile View All Posts by User View Thanks

Users browsing this topic