Can not solve a system of two equations

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

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OchkovVF		#1 Posted : 07 October 2023 22:31:52(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 340 Was thanked: 26 time(s) in 25 post(s)		CP-Cyrcle.sm (25kb) downloaded 19 time(s).
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Jean Giraud		#2 Posted : 08 October 2023 14:58:36(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		roots supports a single argument

1 user thanked Jean Giraud for this useful post.		on 08/10/2023(UTC)
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OchkovVF		#3 Posted : 08 October 2023 15:04:57(UTC)
Rank: Advanced Member Groups: Registered, Advanced Member Joined: 06/04/2023(UTC) Posts: 340 Was thanked: 26 time(s) in 25 post(s)		Originally Posted by: Jean Giraud roots supports a single argument ???
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overlord		#4 Posted : 08 October 2023 19:51:08(UTC)
Rank: Advanced Member Groups: Registered Joined: 23/07/2013(UTC) Posts: 1,128 Was thanked: 509 time(s) in 339 post(s)		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 (33kb) downloaded 11 time(s).

2 users thanked overlord for this useful post.		on 09/10/2023(UTC), on 09/10/2023(UTC)
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mkraska		#5 Posted : 09 October 2023 11:44:58(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/04/2012(UTC) Posts: 1,988 Was thanked: 1127 time(s) in 723 post(s)		This is a version without solving equations. The curvature is known as a function of the path length. 02 Ubergangsbogen.sm (81kb) downloaded 6 time(s).
		Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx

2 users thanked mkraska for this useful post.		on 09/10/2023(UTC), on 09/10/2023(UTC)
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