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 KiB) downloaded 154 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

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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 KiB) downloaded 147 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 KiB) downloaded 146 time(s).
Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx
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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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