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Answered
Why does adding a space give vertcat error?
with a space, [1;1 +1] is interpreted as [1;1, +1]. [1;(1 +1)] will be OK.

10 days ago | 1

| accepted

Answered
Error using minmax newff
You are using char type variables, i.e filename a = {'abc', 'aa', 'b'; 'abc1', 'aa1', 'b1'} a = 2×3 cell array {'abc' ...

11 days ago | 0

Answered
Why is signal amplitude so low after applying FFT?
https://www.mathworks.com/matlabcentral/answers/162846-amplitude-of-signal-after-fft-operation https://www.sjsu.edu/people/burf...

18 days ago | 0

Answered
Array indices must be positive integers or logical values.
if length(c) is an even number, then (length(c)+1)/2 is not an integer

23 days ago | 0

Answered
Unrecognized function or variable 'snopt'. Error in Untitledidk (line 362) [x, f, inform, xmul, fmul] = snopt(xg, xlwr, xupr, xmul, xstate, ... What is this function
https://github.com/snopt/snopt-matlab Matlab interface for sparse nonlinear optimization software SNOPT. Requires the SNOPT so...

2 months ago | 1

Answered
Out of Memory. Infinite Recursion.
doc polylog Argument of the polylogarithm, specified as a number, array, symbolic number, symbolic variable, symbolic function,...

2 months ago | 0

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Question


how to use function handles
Instead of the following, I want to use function handles and move if-statments out of the loop: for n=1:10 if a==0 ...

2 months ago | 2 answers | 0

2

answers

Answered
Error while using syms in MATLAB AppDesigner
https://www.mathworks.com/matlabcentral/answers/166584-cannot-use-syms-command

2 months ago | 0

| accepted

Answered
Why am i getting the same error while plotting a function?
doc vpaintegral vpaintegral(f,a,b) numerically approximates f from a to b. vpaintegral(f,[a b]) is equal to vpaintegral(f,a,b)...

2 months ago | 0

Question


How do I do this without using try/catch?
I am using waitbar within Run_pushbutton_Callback (GUIDE GUI): function Run_pushbutton_Callback(hObject, ~, handles) try wb =...

2 months ago | 1 answer | 0

1

answer

Answered
Array indices must be positive integers or logical values.
When x=1, then X_s(x-1) = X_s(0), which is not allowed in Matlab x = 1 x = 1 x = 2 x = 3 x = ...

3 months ago | 0

Answered
Array indices must be positive integers or logical values.
floating point problem; try to use x = round(k/0.2 - 4/0.2 + 1) k = 4.200000000000000 x = 2 k = 4.400000000000...

3 months ago | 1

Answered
Remove from a vector a certain number of elements
sim3 = sim1; sim3(sim3==sim2) = [];

3 months ago | 0

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Answered
Index in position 1 is invalid.
i as an index is not defined in your code, Matlab considers it as 1i by default

3 months ago | 0

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Answered
How can i repeat a formula without for loop?
M = [1,2; 3,4]; LM=log(M); A = 1:5; B = num2cell(A); C = cellfun(@(x) {x*LM}, B); D = cellfun(@(x) {exp(x)},C); D{:}

3 months ago | 0

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Answered
Make subplot use the full figure on buttondown click.
The following works as you requested. You can of course modify the code in more elegant way with numbering handles as ax(n) etc...

4 months ago | 0

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Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

4 months ago

Solved


Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

4 months ago

Answered
How to superimpose two figure, one to bottom right corner of larger.
fig1 = figure(1); % create figure1 pos1 = fig1.Position; % position of figure1: pos1 = [x1, y1, width1, hight1] pos2 = pos1;...

4 months ago | 0

| accepted

Answered
Plot of nested for loop for thickness variable
Place figure(1) with a number before for-loop and use plot(results(:,1),results(:,2)) only once. If you use figure() without an...

4 months ago | 0

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Answered
Error using vertcat Dimensions of arrays being concatenated are not consistent.
It seams that if there is a space between the real and imaginary parts of the number, Matlab considers it as two different numbe...

5 months ago | 0

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Answered
uicontrol callback function with single variable
The following works. Though, I cannot explain why function test(~,~,multiple)

5 months ago | 1

Answered
How to find points between two intersecting lines?
myData = [X,Y]; y1 = 3 - X; y2 = 2/3*X + 4/3; Y1 = Y(Y < y2 & Y > y1); X1 = X(Y < y2 & Y > y1); % or X1 = X(Y == Y1) myData...

5 months ago | 1

| accepted

Answered
Why are these two ways of writing the same integral giving me different results?
Use the option 'ArrayValued',true pot1=kappa*rho1*integral(f,0,pi,'ArrayValued',true);

6 months ago | 0

Answered
Writing titles and x/y labels inside a for loop and if-statements
remove stem(n, x) before if statement

6 months ago | 0

| accepted

Answered
3D Plot Color Map Gradation
Try this: cmp=colormap(turbo(256)); caxis([-0.5,0.5]); cmp1=cmp; cmp1(1:128,:)=flipud(cmp1(129:256,:)); colormap(cmp1); co...

6 months ago | 0

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Answered
Matrix display answers without sigmas
You may be running your code in the live editor. Running the code in a usual script or command window displays the result in t...

6 months ago | 0

| accepted

Question


minor grid in consecutive plots
If I run the following code (within a script or command window) several times, then the minor grids will be 'on' only every othe...

6 months ago | 1 answer | 0

1

answer

Answered
How can I minimize the outer space for the figure or plot
You can do as follows: x=-2*pi:0.1:2*pi; y=sin(x); figure(1) ax=gca; ax.Position=[0.075 0.075 0.9 0.9]; % default position ...

7 months ago | 0

Answered
How to make a odd number plot look aligned using subplot or tiledlayout?
Happy with the following? x=-2*pi:0.1:2*pi; y1=sin(x); y2=cos(x); y3=sin(x); y4=sinh(x); y5=cosh(x); figure(1) clf su...

7 months ago | 0

| accepted

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