934 total contributions since 2017

Knowledge means knowing where it is written...

Interested in:

- Optimization

- Mathematical Modelling

- Improvement of my programming skills

Answered

Hello. Is SimPowerSystem available in Matlab 2019a?

The toolbox was changed and the functions are now available in Simscape Electrical.

Hello. Is SimPowerSystem available in Matlab 2019a?

The toolbox was changed and the functions are now available in Simscape Electrical.

5 days ago | 0

Answered

Hi! How I can download matlab R2010a?

<https://www.mathworks.com/downloads/web_downloads/select_release?mode=gwylf>

Hi! How I can download matlab R2010a?

<https://www.mathworks.com/downloads/web_downloads/select_release?mode=gwylf>

6 days ago | 0

Answered

Saving a graph with edges and nodes

You can not save a workspace object in a *.m-file*. Use a *.mat-file* instead to save your graph. You can load this in other scr...

Saving a graph with edges and nodes

You can not save a workspace object in a *.m-file*. Use a *.mat-file* instead to save your graph. You can load this in other scr...

9 days ago | 0

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Answered

Where can I study more about scripts in Mat Lab.

you might want to look here: <https://de.mathworks.com/learn/tutorials/matlab-onramp.html?s_cid=learn_ONRAMP_BAN>

Where can I study more about scripts in Mat Lab.

you might want to look here: <https://de.mathworks.com/learn/tutorials/matlab-onramp.html?s_cid=learn_ONRAMP_BAN>

14 days ago | 0

| accepted

Answered

Fit y=m*x into a non lineardata

This forces b to be equal to zero - the value you are interested in is m(1): % Your data x = 0:10; y = [1.5 3 5 7 8 9 13 16 2...

Fit y=m*x into a non lineardata

This forces b to be equal to zero - the value you are interested in is m(1): % Your data x = 0:10; y = [1.5 3 5 7 8 9 13 16 2...

25 days ago | 1

| accepted

Answered

automate the transfer of text files iteraton wise

name = "file_1.txt"; filelist = string(zeros(730,1)); diffusion = cell(730,1); for k = 1:730 number = string(k); f...

automate the transfer of text files iteraton wise

name = "file_1.txt"; filelist = string(zeros(730,1)); diffusion = cell(730,1); for k = 1:730 number = string(k); f...

25 days ago | 1

| accepted

Answered

filter string in the string

str = 'this matlab is a good software, it is a version 9.4 which is equal to 2018a' str = char(str); idx = find((uint8(str)>=...

filter string in the string

str = 'this matlab is a good software, it is a version 9.4 which is equal to 2018a' str = char(str); idx = find((uint8(str)>=...

26 days ago | 1

| accepted

Answered

Reading Data from txt file with a unique FormatSpec

One way: A = reshape(double(replace(string(readcell('Test.txt')),["[[", "[", "]", "]]"],["", "", "", ""])),[],12) This uses th...

Reading Data from txt file with a unique FormatSpec

One way: A = reshape(double(replace(string(readcell('Test.txt')),["[[", "[", "]", "]]"],["", "", "", ""])),[],12) This uses th...

26 days ago | 0

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Answered

Solving a ODE in matlab

ode = @(t,y) y.^2-y.*0.1*cos(2.*t)-0.2*cos(2.*t); t=[0 8]; y0 = -1; [t,y] = ode45(ode,t,y0); plot(t,y)

Solving a ODE in matlab

ode = @(t,y) y.^2-y.*0.1*cos(2.*t)-0.2*cos(2.*t); t=[0 8]; y0 = -1; [t,y] = ode45(ode,t,y0); plot(t,y)

26 days ago | 2

| accepted

Answered

n x 1 array, add row-wise

https://de.mathworks.com/help/matlab/ref/cumsum.html A = [1 3 4 5 3 8 3]' B = cumsum(A)

n x 1 array, add row-wise

https://de.mathworks.com/help/matlab/ref/cumsum.html A = [1 3 4 5 3 8 3]' B = cumsum(A)

26 days ago | 0

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Answered

help to convert text file symbol into array

Assuming you import this as a string, you could use: a = "4c07b] IF hit state: 5 (S) valid:" b = char(a) c = b(:) which give...

help to convert text file symbol into array

Assuming you import this as a string, you could use: a = "4c07b] IF hit state: 5 (S) valid:" b = char(a) c = b(:) which give...

26 days ago | 0

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Answered

Run a code for several values

Sounds like you might be interested in vectorization.

Run a code for several values

Sounds like you might be interested in vectorization.

26 days ago | 0

Answered

write a function that takes any equation as an input

You might to want to achieve this: % Inputs xvals = 0:0.01:10; fun = @(x) x.^5 + sin(x); % call function res = splinecalc...

write a function that takes any equation as an input

You might to want to achieve this: % Inputs xvals = 0:0.01:10; fun = @(x) x.^5 + sin(x); % call function res = splinecalc...

26 days ago | 1

Answered

How to extract specific images from a library of images?

You can construct a string array of the desired file names like follows: exceldata = [0,3,8,12,16,224]; filenames = string(100...

How to extract specific images from a library of images?

You can construct a string array of the desired file names like follows: exceldata = [0,3,8,12,16,224]; filenames = string(100...

26 days ago | 0

| accepted

Answered

Solving a system of second order differential equations (coupled mass-spring system)

syms X1(t) X2(t) K f m1 m2 Y t EqX1 = diff(X1,2) == K*(X1-X2)/m1; EqX2 = diff(X2,2) == f + K*(X2-X1)/m2; [ODE,Vars] = odeTo...

Solving a system of second order differential equations (coupled mass-spring system)

syms X1(t) X2(t) K f m1 m2 Y t EqX1 = diff(X1,2) == K*(X1-X2)/m1; EqX2 = diff(X2,2) == f + K*(X2-X1)/m2; [ODE,Vars] = odeTo...

1 month ago | 0

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Answered

Why INTLINPROG returns non-integer?

load intlinprogfail.mat % file attached intcon = 1:45; [x, ~, flag] = intlinprog(fdummy, intcon, [], [], Aeq, beq, lb, ub); r...

Why INTLINPROG returns non-integer?

load intlinprogfail.mat % file attached intcon = 1:45; [x, ~, flag] = intlinprog(fdummy, intcon, [], [], Aeq, beq, lb, ub); r...

1 month ago | 1

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Answered

comparing the two arrays

x1=[1,2,3,2,0,3,4,3,5,4,5,6,8]; x2=[3,0]; res = zeros(1,numel(x2)); for k = 1:numel(x2) res(k) = sum(ismember(x1,x2(k)...

comparing the two arrays

x1=[1,2,3,2,0,3,4,3,5,4,5,6,8]; x2=[3,0]; res = zeros(1,numel(x2)); for k = 1:numel(x2) res(k) = sum(ismember(x1,x2(k)...

1 month ago | 0

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Answered

matlab code for lagrange method?

Hint: Answers has a search function. We will not write your code - learn from examples: <https://de.mathworks.com/matlabce...

matlab code for lagrange method?

Hint: Answers has a search function. We will not write your code - learn from examples: <https://de.mathworks.com/matlabce...

1 month ago | 0

| accepted

Answered

Selecting data in an array based on a logical value array?

<https://de.mathworks.com/help/matlab/math/array-indexing.html#MatrixIndexingExample-3>

Selecting data in an array based on a logical value array?

<https://de.mathworks.com/help/matlab/math/array-indexing.html#MatrixIndexingExample-3>

1 month ago | 1

| accepted

Answered

Optimization of equation with 3 variables

<https://de.mathworks.com/help/optim/ug/fmincon.html>

Optimization of equation with 3 variables

<https://de.mathworks.com/help/optim/ug/fmincon.html>

1 month ago | 1

Answered

check if random numbers( 5x5) generated are greater than (1x5)

Here is an example using <https://de.mathworks.com/help/matlab/ref/gt.html gt (greather than)> and <https://de.mathworks.com/hel...

check if random numbers( 5x5) generated are greater than (1x5)

Here is an example using <https://de.mathworks.com/help/matlab/ref/gt.html gt (greather than)> and <https://de.mathworks.com/hel...

1 month ago | 0

| accepted

Answered

how do i get Matlab compiler for home users?

At the Moment there is no way to get this with a home license. You can only hope that TMW will someday change his policy - or yo...

how do i get Matlab compiler for home users?

At the Moment there is no way to get this with a home license. You can only hope that TMW will someday change his policy - or yo...

2 months ago | 0

Answered

how with ode45 order we can solve a switching problem?

<https://de.mathworks.com/help/matlab/math/ode-event-location.html>

how with ode45 order we can solve a switching problem?

<https://de.mathworks.com/help/matlab/math/ode-event-location.html>

2 months ago | 0

Answered

My gamultobj nonlinear constraints are being ignored

Get rid of the <= operators, they make the result of myCon a logical zero vector, which brings trouble. Use this instead, to cal...

My gamultobj nonlinear constraints are being ignored

Get rid of the <= operators, they make the result of myCon a logical zero vector, which brings trouble. Use this instead, to cal...

2 months ago | 2

Answered

Working with table.

Your_Table_new = Your_Table(Your_Table.Recommeded_Working_Hours >= 3000,:);

Working with table.

Your_Table_new = Your_Table(Your_Table.Recommeded_Working_Hours >= 3000,:);

2 months ago | 0

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Answered

Function "solve" returns a struct

syms a1 a2 q1 q2 eq = a1*cos(q1) + a2*cos(q1)*cos(q2) - a2*sin(q1)*sin(q2) == 0 sol = isolate(eq,cos(q1)) pretty(sol)

Function "solve" returns a struct

syms a1 a2 q1 q2 eq = a1*cos(q1) + a2*cos(q1)*cos(q2) - a2*sin(q1)*sin(q2) == 0 sol = isolate(eq,cos(q1)) pretty(sol)

2 months ago | 0

Answered

MATLAB codeto python code conversion

There is no tool to do this in an automatic manner. To do this you can seither do (let) this by hand or you use the free Matlab ...

MATLAB codeto python code conversion

There is no tool to do this in an automatic manner. To do this you can seither do (let) this by hand or you use the free Matlab ...

2 months ago | 1

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Answered

Showing years on x axis graph

<https://de.mathworks.com/help/matlab/ref/xticks.html>

Showing years on x axis graph

<https://de.mathworks.com/help/matlab/ref/xticks.html>

2 months ago | 0