Ode symbolic solution with IC - How to solve? Options  Email this topic  Watch this topic  Print this topic » Normal Threaded

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OchkovVF		#1 Posted : 01 July 2023 11:56:48(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		See please one ODE symbolic solution without IC dsolve.sm (5kb) downloaded 11 time(s). Edited by user 01 July 2023 12:02:59(UTC)  | Reason: Not specified
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Jean Giraud		#2 Posted : 01 July 2023 13:55:36(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 See please one ODE symbolic solution without IC We have it done for exporting formula c/w constants & IC Jean ODE_Laplace 2nd [Type 3].sm (35kb) downloaded 8 time(s).
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OchkovVF		#3 Posted : 01 July 2023 15:20:10(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		Originally Posted by: Jean Giraud Originally Posted by: OchkovVF See please one ODE symbolic solution without IC We have it done for exporting formula c/w constants & IC Jean ODE_Laplace 2nd [Type 3].sm (35kb) downloaded 8 time(s). Thanks! But no way to do so in SMath
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OchkovVF		#4 Posted : 01 July 2023 16:51:35(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		Originally Posted by: Jean Giraud Originally Posted by: OchkovVF Thanks! But no way to do so in SMath "L & m" are missing in dsolve result ? m is missing in dsolve.
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Razonar		#5 Posted : 01 July 2023 20:48:44(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		Originally Posted by: OchkovVF See please one ODE symbolic solution without IC Hi Valery. Use Ctrl+Shift+K for write D(x)(0), which means x'(0) Best regards. Alvaro.
1 user thanked Razonar for this useful post.		on 02/07/2023(UTC)
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OchkovVF		#6 Posted : 02 July 2023 10:06:01(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		Originally Posted by: Razonar Originally Posted by: OchkovVF See please one ODE symbolic solution without IC Hi Valery. Use Ctrl+Shift+K for write D(x)(0), which means x'(0) Best regards. Alvaro. Thanks! dsolve-ICs.sm (11kb) downloaded 7 time(s).
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Razonar		#7 Posted : 03 July 2023 09:43:12(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		The distance between the cities added. GravityTrain.sm (32kb) downloaded 19 time(s). GravityTrain.pdf (234kb) downloaded 14 time(s). Best regards. Alvaro.
1 user thanked Razonar for this useful post.		on 03/07/2023(UTC)
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Jean Giraud		#8 Posted : 03 July 2023 13:30:35(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Earth distance companion added. Sanity check Air Industry. Jean Angle Vincenty Earth Distance [Mike].sm (50kb) downloaded 10 time(s).
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OchkovVF		#9 Posted : 04 July 2023 08:14:47(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		The Boundary problem? dsolve-Boundary.sm (18kb) downloaded 11 time(s).
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OchkovVF		#10 Posted : 04 July 2023 15:30:11(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 339 Was thanked: 26 time(s) in 25 post(s)		A pendulum
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Razonar		#11 Posted : 05 July 2023 00:53:08(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		Originally Posted by: OchkovVF A pendulum ... The exact solution needs some handwrite work. Edited: a hard handwrite work. Previous version was wrong. Correct solution -> pendulum v2.sm (14kb) downloaded 6 time(s). Wrong solution -> pendulum.sm (14kb) downloaded 7 time(s). Best regards. Alvaro. Edited by user 05 July 2023 11:17:40(UTC)  | Reason: Attached correct analytic solution
1 user thanked Razonar for this useful post.		on 05/07/2023(UTC)
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