Ode symbolic solution with IC

#1 Posted: 2023/7/1 05:56:48

Valery Ochkov

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See please one ODE symbolic solution without IC
dsolve.sm (4.93 KiB) downloaded 1174 time(s).

#2 Posted: 2023/7/1 07:55:36

Jean Giraud

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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 (34.42 KiB) downloaded 942 time(s).

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Valery Ochkov 2023/7/1 09:20:00

#3 Posted: 2023/7/1 09:20:10

Valery Ochkov

66 likes in 682 posts.

Group: User

Wrote

Wrote
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 (34.42 KiB) downloaded 942 time(s).

Thanks!
But no way to do so in SMath

#4 Posted: 2023/7/1 10:51:35

Valery Ochkov

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Wrote

Wrote
Thanks!
But no way to do so in SMath

"L & m" are missing in dsolve result ?

m is missing in dsolve.

#5 Posted: 2023/7/1 14:48:44

Alvaro

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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.

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Valery Ochkov 2023/7/2 04:05:00

#6 Posted: 2023/7/2 04:06:01

Valery Ochkov

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Group: User

Wrote

Wrote
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 (10.61 KiB) downloaded 1188 time(s).

#7 Posted: 2023/7/3 03:43:12

Alvaro

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The distance between the cities added.

GravityTrain.sm (31.01 KiB) downloaded 1115 time(s).
GravityTrain.pdf (233.1 KiB) downloaded 667 time(s).

Best regards.
Alvaro.

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Valery Ochkov 2023/7/3 04:18:00

#8 Posted: 2023/7/3 07:30:35

Jean Giraud

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Earth distance companion added.
Sanity check Air Industry.
Jean

Angle Vincenty Earth Distance [Mike].sm (49.78 KiB) downloaded 917 time(s).

#9 Posted: 2023/7/4 02:14:47

Valery Ochkov

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The Boundary problem?
dsolve-Boundary.sm (17.01 KiB) downloaded 1150 time(s).

#10 Posted: 2023/7/4 09:30:11

Valery Ochkov

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A pendulum

#11 Posted: 2023/7/4 18:53:08

Alvaro

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A pendulum ...

The exact solution needs some handwrite work.

Edited: a hard handwrite work. Previous version was wrong.

Correct solution -> pendulum v2.sm (13.73 KiB) downloaded 1150 time(s).

Wrong solution -> pendulum.sm (13.88 KiB) downloaded 1137 time(s).

Best regards.
Alvaro.

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Valery Ochkov 2023/7/5 06:23:00

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Ode symbolic solution with IC - How to solve? - Messages