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Steve Grikschat

MathWorks

Last seen: 1日 前 2011 以来アクティブ

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回答済み
How to optimize material properties from ANSYS file?
Hi Pedro, The overall approach you've described makes sense and I have seen similar approaches work successfully. For example,...

3ヶ月 前 | 0

回答済み
Why am I getting this error??!! #fmincon
This is likely due to an installation issue. fmincon is part of Optimization Toolbox, and if you do not have the full installat...

3ヶ月 前 | 0

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MATLAB Coder Error - optimset Unrecognized parameter name: 'GradObj'
Hi Vadim, For generating C code for fmincon (or lsqnonlin, etc.) via MATLAB Coder, we require that you use the optimoptions fun...

4ヶ月 前 | 1

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回答済み
Using Matlab coder with lsqcurvefit(), can not pass optimoptions as an argument to the target function
Hi Xingwang, Despite support for the optimoptions function, the objects it generates are not supported for code generation. In ...

8ヶ月 前 | 3

| 採用済み

回答済み
Design Optimization Toolbox MATLAB based on 2 or more outputs
Most solvers in Optimization and Global Optimization toolboxes are for single objectives. As Mario shared, you can use a "goal...

11ヶ月 前 | 0

回答済み
Particle swarm solver not available in Global Optimization Toolbox
Hi, Optimtool did not support all of the solvers in Optimization and Global Optimization Toolboxes. If you have installed or ...

11ヶ月 前 | 1

| 採用済み

回答済み
Can I use automatic differentiation in fmincon?
Updated for R2020b Optimization Toolbox now includes automatic differentiation for problems built with the problem-based workfl...

12ヶ月 前 | 0

回答済み
Why is the optimization toolbox removed in the matlab future release?
Update: In R2020b, Optimization Toolbox and Global Optimization Toolbox now feature the Optimize Live Editor task, which is a g...

12ヶ月 前 | 1

回答済み
Will "optimtool" be replaced in the future?
Update: In R2020b, Optimization Toolbox and Global Optimization Toolbox now feature the Optimize Live Editor task, which is a g...

約1年 前 | 0

回答済み
optimtool to be removed?
Update: In R2020b, Optimization Toolbox and Global Optimization Toolbox now feature the Optimize Live Editor task, which is a g...

約1年 前 | 0

回答済み
scheduled optimtool removal date?
Update: In R2020b, Optimization Toolbox and Global Optimization Toolbox now feature the Optimize Live Editor task, which is a g...

約1年 前 | 0

回答済み
what solver to use for a linear objective function with a quadratic constraint?
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming, which can be used to solve quad...

約1年 前 | 0

回答済み
how I can solve linear programming with quadratic constraints and linear constraints?
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming, which can be used to solve quad...

約1年 前 | 0

回答済み
Quadratic optimization with quadratic constraints
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming, which can be used to solve quad...

約1年 前 | 0

回答済み
Linear objective with quadratic constraint
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming, which can be used to solve quad...

約1年 前 | 0

回答済み
How to solve SOCP program on MATLAB?
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming: https://www.mathworks.com/help...

約1年 前 | 1

回答済み
Can I perform Second Order Cone Programming in MATLAB 7.8 (R2009a)?
As of R2020b, Optimization Toolbox now has a dedicated solver for second-order cone programming: https://www.mathworks.com/help...

約1年 前 | 1

回答済み
Matlab 2019b optimoptions not work on sparse jacobPattern anymore
This is a bug in optimoptions in R2019b. Thanks for reporting this! As a workaround until it is fixed, you can use optimset ...

2年弱 前 | 0

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回答済み
surrogateopt function's parallel option with a parallel objective function
Hi Andrea, Your observation is correct. Parallel Computing Toolbox only supports 1-level of parallelism. https://www.mathwo...

約2年 前 | 0

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回答済み
Huge overhead in fsolve due to fsolve>createExitMsg()
An update: This was changed in all solvers in R2018a. Now, the message is not made if it is not requested, i.e. if options.Dis...

2年以上 前 | 0

| 採用済み

回答済み
Error in parfinitedifferences using fmincon and parallel
This is a bug in the R2013b Optimization Toolbox. See the report here: <https://www.mathworks.com/support/bugreports/963073 Bug...

約3年 前 | 1

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送信済み


AMPL Interface to MATLAB
Connect MATLAB - Optimization Toolbox™ to the AMPL API for MATLAB

約3年 前 | ダウンロード 6 件 |

回答済み
fmincon with trust-region-reflective algorithm converges but interior point doesn't
What exactly does I-P return? Does it declare the problem infeasible? Does it time out? It might help others to post some output...

約3年 前 | 1

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回答済み
No feasible solution found when using intlinprog
If you are referring to intermediate feasible solutions you can use the built-in |OutputFcn| |savemilpsolutions|: <https://ww...

約3年 前 | 1

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回答済み
Why is lambda as an output of fmincon empty?
Hi Viswanath, The lambda output is empty since the algorithm was stopped prematurely by the OutputFcn. When that happens, ...

約3年 前 | 3

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回答済み
Reformulate a Constrained Linear Least Square Problem
You can try a trick from Lawson & Hanson and re-formulate to a minimal distance problem and solve via |lsqnonneg|. |lsqnonneg| i...

3年以上 前 | 2

| 採用済み

回答済み
gamultiobj failure when starting with a whole feasible population
Hi, From the stack trace, you can see that the solver calls the fitness function with a row vector. It should be a 1-by-nvars...

4年弱 前 | 0

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回答済み
DerivativeCheck and finite differencing in lsqcurvefit/lsqnonlin
Hi Matt, Your assessment is correct in that the step-size is determined relative to the scale of the variables (columns of J)...

6年弱 前 | 0

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回答済み
What does this lsqnonlin error mean?
This error is occurring because your function is returning arrays of varying sizes. In this case, it is being caught during fini...

約8年 前 | 1

| 採用済み

回答済み
What does this Fmincon error mean?
This is a bug with the parallel finite differences approximation code. In particular, how this feature works with "invalid" valu...

8年以上 前 | 1

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