Euler method without for - With vectors Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

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OchkovVF		#1 Posted : 24 December 2023 19:26:58(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 348 Was thanked: 28 time(s) in 27 post(s)		I can’t figure out how to implement Euler method for solving ODEs without a for cycle - only with vectors. Help please. Rocket-s-Euler-vectors.sm (29kb) downloaded 7 time(s).
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StvMath		#2 Posted : 25 December 2023 01:07:27(UTC)
Rank: Advanced Member Groups: Registered Joined: 26/07/2022(UTC) Posts: 37 Location: UK Was thanked: 24 time(s) in 21 post(s)		Like this: Rocket-s-Euler-vectors_b.sm (32kb) downloaded 2 time(s). Correction: The term yb*i should just be yb. Edited by user 25 December 2023 22:36:39(UTC)  | Reason: To correct error
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1 user thanked StvMath for this useful post.		on 25/12/2023(UTC)
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OchkovVF		#3 Posted : 25 December 2023 01:26:31(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 348 Was thanked: 28 time(s) in 27 post(s)		Thanks. But I need without the line operator!
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StvMath		#4 Posted : 25 December 2023 02:22:39(UTC)
Rank: Advanced Member Groups: Registered Joined: 26/07/2022(UTC) Posts: 37 Location: UK Was thanked: 24 time(s) in 21 post(s)		Even simpler! Rocket-s-Euler-vectors_c.sm (31kb) downloaded 4 time(s). Correction: The term vb*i should just be vb Edited by user 25 December 2023 22:36:59(UTC)  | Reason: To correct error
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Jean Giraud		#5 Posted : 25 December 2023 05:26:20(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: OchkovVF I can’t figure out how to implement Euler method for solving ODEs without a for cycle - only with vectors. Help please. Further, you would have to collect pairwise. Euler is a poor integrator vs the yardstick rkf4 [Fehlberg]. On my test function Euler deviates up to 0.07 ... damned inaccurate ! Jean
1 user thanked Jean Giraud for this useful post.		on 25/12/2023(UTC)
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OchkovVF		#6 Posted : 25 December 2023 06:17:24(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 348 Was thanked: 28 time(s) in 27 post(s)		Originally Posted by: Jean Giraud Originally Posted by: OchkovVF I can’t figure out how to implement Euler method for solving ODEs without a for cycle - only with vectors. Help please. Further, you would have to collect pairwise. Euler is a poor integrator vs the yardstick rkf4 [Fehlberg]. On my test function Euler deviates up to 0.07 ... damned inaccurate ! Jean Edited by user 25 December 2023 06:25:31(UTC)  | Reason: Not specified
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OchkovVF		#7 Posted : 25 December 2023 21:48:22(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 348 Was thanked: 28 time(s) in 27 post(s)		Merry Christmas to everyone! Edited by user 25 December 2023 21:50:35(UTC)  | Reason: Not specified
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1 user thanked OchkovVF for this useful post.		on 28/12/2023(UTC)
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