Can not solve a system of two equations

Can not solve a system of two equations - Help me please - Messages

#1 Posted: 10/7/2023 4:31:52 PM
Valery Ochkov

Valery Ochkov

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CP-Cyrcle.sm (24.37 KiB) downloaded 913 time(s).
#2 Posted: 10/8/2023 8:58:36 AM
Jean Giraud

Jean Giraud

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roots supports a single argument
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Valery Ochkov 10/8/2023 9:05:00 AM
#3 Posted: 10/8/2023 9:04:57 AM
Valery Ochkov

Valery Ochkov

66 likes in 671 posts.

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Wrote

roots supports a single argument


???
#4 Posted: 10/8/2023 1:51:08 PM
overlord

overlord

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You don't have to eliminate units.
There are tricks to use them in solvers.
This is the best I could get.
Maybe a pro user can help you better.
roots() supports multiple argument btw.
Your equations has derivative.
Possibly reason of error by conventional solvers.
roots(), FindRoot(), solve() mostly doesn't like it.

Regards

CP-Cyrcle_solved.sm (32.37 KiB) downloaded 933 time(s).

2023-10-08_19-45.png
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Oscar Campo 10/8/2023 10:44:00 PM, Valery Ochkov 10/9/2023 5:52:00 AM
#5 Posted: 10/9/2023 5:44:58 AM
Martin Kraska

Martin Kraska

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This is a version without solving equations. The curvature is known as a function of the path length.

2023-10-08 20_17_12-SMath Solver - [Spiral-Euler_Kr.sm_].png
02 Ubergangsbogen.sm (80.24 KiB) downloaded 955 time(s).
Technische Mechanik mit SMath Studio: https://link.springer.com/book/10.1007/978-3-658-50592-9
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Valery Ochkov 10/9/2023 5:52:00 AM, Oscar Campo 10/9/2023 7:39:00 AM
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