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**Feeds**

Question

is there any reason for this?

In Matlab "1" + "1" = "11" but '1' + '1' = 98 i.e. char(49) = '1' but char(49) + char(49) = 98 Is there any reaso...

6 månader ago | 1 answer | 0

### 1

answerMATLAB GUI Pushbutton Click Runs Callback Twice

See my answer here: https://se.mathworks.com/matlabcentral/answers/1982264-double-action-of-guide-adapted-drop-down-menu-callba...

mer än ett år ago | 0

double action of GUIDE adapted drop down menu callback

A have found the answer to my question. In GUIDE created and subsequently migrated to Appdesigner dropdown menu, the ValueChang...

mer än ett år ago | 0

| accepted

Question

double action of GUIDE adapted drop down menu callback

In my code, I still have some GUIDE-style callbacks of dropdown menus as follows (this is just example code): % Value changed f...

mer än ett år ago | 2 answers | 0

### 2

answersHow can I synchronize two split windows in the editor?

I found a solution: if you split window after highlighting, then both windows demonstrate the same highlighting; if you split wi...

mer än 2 år ago | 0

| accepted

Question

How can I synchronize two split windows in the editor?

In previous releases, if I highlight function name in, say, left split window, it was automatically highlighted in the right win...

mer än 2 år ago | 1 answer | 0

### 1

answerHow to add a right hand y-axis with the same major and minor ticks?

x = -2*pi:0.1:2*pi; y1 = sin(x); y2 = tan(x); yyaxis left hp1 = plot(x,y1); h1 = gca; h1.YTick = -1:0.5:1; set(h1,'XMin...

mer än 2 år ago | 0

| accepted

Center alignment for tiledlayout

x = -2*pi:0.1:2*pi; y = sin(x); t = tiledlayout(3,6); nexttile([1,2]) plot(x,y) nexttile([1,2]) plot(x,y) nexttile([1,2])...

mer än 2 år ago | 1

| accepted

Question

Why the matlab editor (Code Analyser) is not warning about changing size by a variable within a loop

In the 2nd example of the following for-loop the variable A definitely changes its size as it does in the 1st example. However, ...

nästan 3 år ago | 1 answer | 0

### 1

answerUnable to find explicit solution

Your equation with actual ratio a4/a3 does not have analytical solution. Try to solve it numerically with some tolerance.

nästan 3 år ago | 0

Add zero decimal digits in order to have all the elements of a matrix with same number of decimal digits

A = magic(3) B = num2str(A,'%.3f\t')

nästan 3 år ago | 0

How to create a cell array identical in size, but containing cell position in each cell?

A = {[1,2,3,4]; [1,2,5]; [5,6,1,2,4]; [44]} B = cell(size(A)); for k = 1:length(A) B{k} = repmat(k,1,length(A{k})); end

nästan 3 år ago | 0

| accepted

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.

nästan 3 år ago | 1

| accepted

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' ...

ungefär 3 år ago | 0

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...

ungefär 3 år ago | 0

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

ungefär 3 år ago | 0

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...

ungefär 3 år ago | 1

Out of Memory. Infinite Recursion.

doc polylog Argument of the polylogarithm, specified as a number, array, symbolic number, symbolic variable, symbolic function,...

ungefär 3 år ago | 0

| accepted

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 ...

ungefär 3 år ago | 2 answers | 0

### 2

answersError while using syms in MATLAB AppDesigner

https://www.mathworks.com/matlabcentral/answers/166584-cannot-use-syms-command

ungefär 3 år ago | 0

| accepted

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)...

ungefär 3 år 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 =...

ungefär 3 år ago | 1 answer | 0

### 1

answerArray 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 = ...

mer än 3 år ago | 0

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...

mer än 3 år ago | 1

Remove from a vector a certain number of elements

sim3 = sim1; sim3(sim3==sim2) = [];

mer än 3 år ago | 0

| accepted

Index in position 1 is invalid.

i as an index is not defined in your code, Matlab considers it as 1i by default

mer än 3 år ago | 0

| accepted

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{:}

mer än 3 år ago | 0

| accepted

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...

mer än 3 år ago | 0

| accepted

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...

mer än 3 år 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...

mer än 3 år ago