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Finding Complex root for the nonlinear equation with single variable

Asked by Ammar Ahmed about 15 hours ago

Latest activity Answered by Ammar Ahmed 5 minutes ago

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solving Non Linear optimization problem with fmincon

Asked by Muhammad Kundi 17 minutes ago

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How do I solve the error "Conversion to logical from sym is not possible" for this given system of non linear equations? I understand the issue that the comparison needs a value, not a symbolic variable, but I don't know how to solve the problem.Help

Asked by nimi sha about 9 hours ago

Latest activity Edited by nimi sha about 9 hours ago

3

answers

0 votes
48 views

How to solve 4 equations with 4 unknowns using matlab

Asked by Josh on 21 Nov 2013

Latest activity Answered by Alex Sha on 12 Oct 2019 at 9:25

Accepted Answer by Roger Stafford

3

answers

0 votes
41 views

How do I fit multiple curves with same fitting parameters?

Asked by Anik Faisal on 5 Mar 2019

Latest activity Answered by Alex Sha on 12 Oct 2019 at 8:15

Accepted Answer by Anik Faisal

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Solving an nonlinear equation

Asked by bahar zilaei on 11 Oct 2019 at 21:10

Latest activity Answered by Star Strider on 11 Oct 2019 at 21:15

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(what is Problem in Matlab algorithm) for solution of set of coupled 4th order ode and algebraic equation

Asked by Iota on 3 Oct 2019 at 6:56

Latest activity Commented on by J. Alex Lee on 11 Oct 2019 at 11:33

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How can I plot a bode plot of anon linear system?

Asked by Amina Mokhtar on 8 Oct 2019 at 8:32

Latest activity Answered by Akshit Agarwal on 11 Oct 2019 at 7:12

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43 views

Solving a system of nonlinear equations with unorganized unknowns?

Asked by Devanjith Fonseka on 4 Oct 2019 at 20:13

Latest activity Edited by Matt J on 6 Oct 2019 at 13:47

1

answer

0 votes
15 views

Display/Plot Functions for Genetic Algorithm seemingly not working when I include nonlinear constraint

Asked by Nick Rowe on 1 Oct 2019 at 14:51

Latest activity Answered by Alan Weiss on 6 Oct 2019 at 12:23

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39 views

Help with Writing Function Files for Nonlinear Functions

Asked by Marina Michael on 5 Oct 2019 at 21:39

Latest activity Commented on by John D'Errico on 5 Oct 2019 at 22:55

1

answer

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40 views

How to set lower and upper bound for only one of the output variable in lsqnonlin?

Asked by waqas on 4 Oct 2019 at 14:29

Latest activity Edited by Jon on 4 Oct 2019 at 17:26

Accepted Answer by Jon

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nonlinear optimization with fmincon

Asked by heli on 30 Sep 2019 at 20:20

1

answer

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68 views

Multivariate Nonlinear Problem With vector & matrix unknown inputs

Asked by Ahmed Ghamdi on 21 Sep 2019 at 12:53

Latest activity Commented on by Matt J on 27 Sep 2019 at 14:49

Accepted Answer by Matt J

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Non Linear Soliton Optics

Asked by Alessandro Bile on 25 Sep 2019 at 11:00

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19 views

anyone can share coding of load vs displacement ??

Asked by Shahroz Aijaz on 16 Sep 2019 at 7:53

Latest activity Commented on by Ankit on 25 Sep 2019 at 9:12

1

answer

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how can i solve "Error using constrValidate" in genetic algorithm?

Asked by andrea mascari on 24 Sep 2019 at 20:23

Latest activity Answered by Walter Roberson on 25 Sep 2019 at 6:49

Accepted Answer by Walter Roberson

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3

answers

0 votes
39 views

Nonlinear fit comparison - Matlab vs OriginLab

Asked by MZ123 on 13 Sep 2018

Latest activity Answered by Alex Sha on 23 Sep 2019 at 9:54

Accepted Answer by Matt J

1

answer

0 votes
39 views

how to create a vector of equations in matlab

Asked by RAGHAV GOYAL on 23 Sep 2019 at 0:06

Latest activity Edited by John D'Errico on 23 Sep 2019 at 7:38

1

answer

0 votes
21 views

Solving nonlinear diferential equations system

Asked by skinny pete on 23 Sep 2019 at 2:35

Latest activity Answered by Bjorn Gustavsson on 23 Sep 2019 at 6:08

1

answer

0 votes
11 views

Are SimScape models idealistic or realistic?

Asked by Rajesh Siraskar on 9 Sep 2019

Latest activity Commented on by Rajesh Siraskar on 19 Sep 2019 at 12:22

Accepted Answer by Abhisek Pradhan

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Issue with Sigmoidnet input function

Asked by Sharmila Biswas on 16 Sep 2019 at 10:37

0

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4 views

Solving a non-linear problem for several lines

Asked by Bruno Martins on 12 Jan 2019

Latest activity Commented on by ahmad mohmad on 16 Sep 2019 at 0:11

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1

answer

0 votes
16 views

Why does fsolve seem not iterate towards the solution?

Asked by Javier on 12 Sep 2019 at 6:44

Latest activity Commented on by Javier on 13 Sep 2019 at 8:40

Accepted Answer by Torsten

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1

answer

1 vote
5 views

fmincon is nonlinear constraints satisfied, then not satisfied when I include objective function

Asked by Dan Goldwater on 11 Sep 2019 at 14:13

Latest activity Edited by Matt J on 12 Sep 2019 at 17:29

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Optimization Toolbox

1

answer

0 votes
4 views

Issue with Sigmoidnet function input

Asked by Sharmila Biswas on 7 Sep 2019

Latest activity Answered by Roshni Garnayak on 11 Sep 2019

1

answer

0 votes
29 views

Avoiding local minimum with fmincon

Asked by Felippe Trigueiro Angelo on 6 Sep 2019

Latest activity Commented on by Felippe Trigueiro Angelo on 9 Sep 2019

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1

answer

0 votes
14 views

nonlinear fit of experimental data

Asked by Maura Monville on 19 Aug 2019

Latest activity Commented on by Maura Monville on 9 Sep 2019

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1

answer

0 votes
5 views

fmincon gradient of nonlinear inequality constraints must have size???

Asked by Ali Esmaeilpour on 7 Sep 2019

Latest activity Edited by Matt J on 8 Sep 2019

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how can I add two or more time periods in matlab code for nonlinear system of ODE using ode45 matlab?

Asked by shegaw mamo on 5 Sep 2019

Latest activity Commented on by darova on 6 Sep 2019

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4

answers

0 votes
51 views

Bad fitting result using lsqcurvefit

Asked by Qingjie on 28 Mar 2014

Latest activity Answered by Alex Sha on 6 Sep 2019

Accepted Answer by Star Strider

0

answers

0 votes
4 views

how can I plot the graph of nonlinear system of ODE

Asked by shegaw mamo on 5 Sep 2019

Latest activity Edited by shegaw mamo on 5 Sep 2019

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1

answer

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matlab code help for equation solving

Asked by Ankita Som on 2 Sep 2019

Latest activity Commented on by Ankita Som on 3 Sep 2019

Accepted Answer by Dimitris Kalogiros

0

answers

0 votes
1 view

What are solver best settings for my non linear equations?

Asked by Javier on 3 Sep 2019

1

answer

0 votes
15 views

solve systems of symbolic nonlinear ordinary differential equations with replace the equations by parameters

Asked by frank on 3 May 2012

Latest activity Commented on by Walter Roberson on 30 Aug 2019

0

answers

0 votes
2 views

Error in model function using fitnlm

Asked by Massimo Carpita on 23 Aug 2019

1

answer

0 votes
5 views

Fit y=m*x into a non lineardata

Asked by Hadi Data on 22 Aug 2019

Latest activity Commented on by John D'Errico on 22 Aug 2019

Accepted Answer by Stephan

2

answers

0 votes
1 view

Find average y value of a range of numbers from a non linear data set

Asked by math seeker on 20 Aug 2019

Latest activity Commented on by math seeker on 21 Aug 2019

Accepted Answer by the cyclist

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1

answer

0 votes
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Equation solver nonlinear variables

Asked by K.G on 14 Aug 2019

Latest activity Commented on by Walter Roberson on 17 Aug 2019

Accepted Answer by Walter Roberson

2

answers

0 votes
16 views

Solving system of three non linear equations??

Asked by Yungjun Kim on 21 Nov 2018

Latest activity Answered by Alex Sha on 17 Aug 2019

1

answer

0 votes
1 view

How to useParallel in system identification?

Asked by Lucas Ferreira-Correia on 15 Aug 2019

Latest activity Answered by Rajiv Singh on 16 Aug 2019

Accepted Answer by Rajiv Singh

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1

answer

0 votes
66 views

How do I create and solve a system of N coupled differential equations?

Asked by Patrick L on 2 Dec 2017

Latest activity Commented on by Steven Lord on 16 Aug 2019

1

answer

0 votes
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How can I enter in matlab syntax two parameters which are not exist in the system of nonlinear ode?

Asked by shegaw mamo on 16 Aug 2019

Latest activity Answered by Guillaume on 16 Aug 2019

Accepted Answer by Guillaume

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Uncertainty for regressed parameters using nlinfit considering the uncertainty of data

Asked by Ronny Rives on 15 Aug 2019

Latest activity Edited by Ronny Rives on 16 Aug 2019

2

answers

0 votes
1 view

How to fit experimental data to a model defined by m. file

Asked by Ronny Rives on 14 Aug 2019

Latest activity Commented on by dpb on 16 Aug 2019

2

answers

0 votes
0 views

How can I add contraints to a model ( non linear arx, arx, armax ...) ?

Asked by Nils B on 4 Aug 2019

Latest activity Answered by Nils B on 11 Aug 2019

Accepted Answer by Rajiv Singh

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3

answers

0 votes
34 views

Solving trigonometric non-linear equations in MATLAB

Asked by Mohamed ahmed on 14 Apr 2018

Latest activity Commented on by Walter Roberson on 8 Aug 2019

1

answer

0 votes
1 view

Non linear function for an optimal control problem

Asked by Auryn_ on 5 Aug 2019

Latest activity Answered by Torsten on 6 Aug 2019

2

answers

0 votes
3 views

Custom Regressor in Nonlinear Model created from Data

Asked by Nils B on 1 Aug 2019

Latest activity Edited by Nils B on 5 Aug 2019

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0

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How can I adjust and extract the distribution function parameters in fitdist

Asked by Zachary Hallenbeck on 17 Jul 2019

Latest activity Commented on by Dheeraj Singh on 5 Aug 2019

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