Adding matrices - How to put a matrix 5x5 to a matrix 15x15 Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

Previous Topic Next Topic

rafalSM		#1 Posted : 05 October 2016 17:06:07(UTC)
Rank: Newbie Groups: Registered Joined: 05/10/2016(UTC) Posts: 4 Location: Wroclaw		Helo Everyone! I have one question: imagine the matrix of size 15x15 filled with zeros. I want to put smaller matrix 5x5 to the bigger one but from column 2 to 6 and to rows 4 to 8. How can I do this? Edited by user 05 October 2016 17:13:56(UTC)  | Reason: drawing added
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 : 05 October 2016 17:29:16(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,648 Location: Italy Was thanked: 1329 time(s) in 875 post(s)		Hello rafalSM , You can use a loop: example
		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

rafalSM		#3 Posted : 05 October 2016 17:35:50(UTC)
Rank: Newbie Groups: Registered Joined: 05/10/2016(UTC) Posts: 4 Location: Wroclaw		Oh, thank You a lot. It seems that this activity is much more complicated than in case of MathCad. But where can I take function "merge" from?
User Profile View All Posts by User View Thanks

Davide Carpi		#4 Posted : 05 October 2016 17:44:29(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,648 Location: Italy Was thanked: 1329 time(s) in 875 post(s)		It is the first function in the worksheet linked above (you can download it and copy the function in your own worksheet) How it works in Mathcad?
		If you like my plugins consider to support SMath Studio buying a plan; to offer me a coffee: paypal.me/dcprojects
1 user thanked Davide Carpi for this useful post.		on 06/10/2016(UTC)
User Profile View All Posts by User View Thanks

rafalSM		#5 Posted : 05 October 2016 18:00:02(UTC)
Rank: Newbie Groups: Registered Joined: 05/10/2016(UTC) Posts: 4 Location: Wroclaw		I attached a pdf file (polish language ) which presents calculations of critical factor "alfa cr" for steel frame (see: Eurocode 1993-1-1). The most interesting formulas can be found on page 10 of this document. projekt16.pdf (321kb) downloaded 62 time(s).
User Profile View All Posts by User View Thanks

Jean Giraud		#6 Posted : 05 October 2016 19:00:12(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
User Profile View All Posts by User View Thanks

Jean Giraud		#7 Posted : 05 October 2016 19:02:36(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		... next: try NOT to isolate "M"
User Profile View All Posts by User View Thanks

mikekaganski		#8 Posted : 06 October 2016 01:10:07(UTC)
Rank: Advanced Member Groups: Registered Joined: 17/01/2013(UTC) Posts: 296 Location: Khabarovsk, Russia Was thanked: 151 time(s) in 107 post(s)		Originally Posted by: rafalSM but from column 2 to 6 and to rows 4 to 8 Please note that SMath's count of rows/columns starts from 1, not 0 (as your question implied).
		Best regards, Mike Kaganski
User Profile View All Posts by User View Thanks

Jean Giraud		#9 Posted : 06 October 2016 05:32:45(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: mikekaganski Please note that SMath's count of rows/columns starts from 1, not 0 (as your question implied). Quite right: Davide "merge" is Smath style based on index ORIGIN = 1 Jean "replace" is Mathcad style based on default ORIGIN = 0
User Profile View All Posts by User View Thanks

Jean Giraud		#10 Posted : 06 October 2016 05:43:53(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Converting your *.PDF [Mathcad] to Smath looks quite an entreprise. In the mean time, the "Matrix Treasury" may content useful modules. Jean Utilities Matrix Treasury Copy.sm (316kb) downloaded 53 time(s).
User Profile View All Posts by User View Thanks

rafalSM		#11 Posted : 06 October 2016 12:54:51(UTC)
Rank: Newbie Groups: Registered Joined: 05/10/2016(UTC) Posts: 4 Location: Wroclaw		Originally Posted by: Davide Carpi It is the first function in the worksheet linked above (you can download it and copy the function in your own worksheet) How it works in Mathcad? But you was able to create such a type of function. How did you do it?
User Profile View All Posts by User View Thanks

Jean Giraud		#12 Posted : 06 October 2016 15:35:23(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: rafalSM But you were able to create such a type of function. How did you do it? Something I don't understand: OK you are new to Smath and presumably you may not be familiar about it. The Mathcad PDF, did you do it yourself ? If so: you are already in Smath. Am immense amount of Mathcad stuff is convertible in Smath by many similarities in the programme code and algorthmic construction. I glanced through the PDF and noticed "eigvec & eigval". If you need, there is an Smath document doing. Cheers, Jean
User Profile View All Posts by User View Thanks

Users browsing this topic

Guest