Search found 8 matches
- September 12th, 2014, 4:26 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
Thanks. Right now I'm solving my equation using the excel solver as my priority is to finish the project. But as soon as I have time I'll try to figure out what's happening with Simantics and report my findings.
- September 9th, 2014, 11:41 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
I'm trying to solve the same example and it simulates but it doesn't return the correct answer. I'm using the latest nightly (b682).
Thanks
Thanks
- September 5th, 2014, 8:03 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
Thanks. I was able to run it and solve fun1 from the example in the library. Now I'm trying to solve fun2: function fun2 "y = 3*u - sin(w*u) - 1" extends Modelica.Math.Nonlinear.Interfaces.partialScalarFunction; input Real w "Angular velocity"; algorithm y := 3*u - sin(w*u) - 1; end fun2; By typing ...
- September 4th, 2014, 9:37 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
Toumas thanks for the example. Is version b673 supposed to be in trunk archive? If not I'll just wait until it is released.
- September 3rd, 2014, 7:43 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
Thanks very much! I'll look for the latest nightly in a few days.
- September 3rd, 2014, 12:19 am
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
Thanks I tried copying and pasting this function: function solveOneNonlinearEquation "Solve f(u) = 0 in a very reliable and efficient way (f(u_min) and f(u_max) must have different signs)" extends Modelica.Icons.Function; import Modelica.Utilities.Streams.error; input Modelica.Math.Nonlinear.Interfa...
- August 29th, 2014, 5:44 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Re: Nonlinear Equation Solver
I found this library:
https://github.com/modelica/Modelica/bl ... nlinear.mo
Is there a way of using it in Simantics?
Thanks
https://github.com/modelica/Modelica/bl ... nlinear.mo
Is there a way of using it in Simantics?
Thanks
- August 29th, 2014, 4:05 pm
- Forum: Simantics System Dynamics
- Topic: Nonlinear Equation Solver
- Replies: 13
- Views: 161716
Nonlinear Equation Solver
Hi guys,
Is there a way of solving a nonlinear equation inside Simantics System Dynamics?
I know its possible to add a C language function to do this but I don't have admin rights on my machine to compile one.
Thanks
Is there a way of solving a nonlinear equation inside Simantics System Dynamics?
I know its possible to add a C language function to do this but I don't have admin rights on my machine to compile one.
Thanks