Answered
Vectorized method to find the number of consecutive 1s from the left of an array
idx=find(diff(A)); if A(1)==0 Result=0 elseif all(A) Result=numel(A) else Result=idx(1) end

7 years ago | 1

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Answered
How to control x-axis range
xlim([0 100]) xticks(0:20:100)

7 years ago | 2

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Answered
How can I plot a solid 3-D cube of unit dimension in matlab?
gm=multicuboid(1,1,1); model=createpde; model.Geometry=gm; pdegplot(model)

7 years ago | 0

Answered
how do i place a matrix on top of each other using repmat
z1=zeros(5); z2=ones(5,10); z3=repmat(0:14,5,1); % proper usage Result=[z1 z2;z3] % concatenate z1 , z2 horizontally & z3 ve...

7 years ago | 0

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Answered
How to plot ?
doc fplot

7 years ago | 0

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Answered
Line thickness 'invalid data argument' error
plot(x,f,'r','LineWidth',3) hold on plot(x,fh,'b','LineWidth',1)

7 years ago | 1

Answered
Split numeric values of vector with NaN to individual matrices
Note: In your question the first NaN should be NaN not Nan because NaN is valid in Matlab. M = [ 1 ; 2 ; 4 ; 4 ; 2 ; NaN ; NaN ...

7 years ago | 0

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Answered
integral and derivatives of a function
Your way , see https://www.mathworks.com/help/matlab/ref/diff.html#btw_sz6-1 : clc clear inta3=integral(@a3,0,5); x=0:0.1:5...

7 years ago | 0

Answered
integral and derivatives of a function
clc clear inta3=integral(@a3,0,5) syms x % requires symbolic toolbox Ax=a3(x) diffa3= diff(Ax)/x % remember diff(Ax) is on...

7 years ago | 0

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Answered
indexing to find elements between 2 values in a matrix
B=M6<0 | (M6>29 & M6<33)

7 years ago | 0

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Answered
problem with integration of a function
yb = 10*x.^2.*exp(-2*x).*(sin(3*x-pi)+cos(x.^2)) % ^--- missed it

7 years ago | 0

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Answered
tring to plot the 3d and contour levels of a function
clc clear x=-pi:0.1:pi/2 y=-pi:0.1:pi; [xx,yy]=meshgrid(x,y) zz = cos(2*yy-x).*sin(2*xx); % ^------------^------ m...

7 years ago | 0

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Answered
fmincon - Not Enough Input Arguments
x0 = [-1,2]; A = [1,2]; b = 1; x = fmincon(@z1_test,x0,A,b) % ^------ missed it function f2 = z1_test(x) f2 = ...

7 years ago | 1

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Answered
Legend is not working!
plot(I,repmat(12,1,numel(I)),'-rx') plot(repmat(0.1,1,numel(V3)),V3,'-bo')

7 years ago | 0

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Answered
How do I get the lengths of each entry in a cell array without using a loop
cellfun(@length,ca)

7 years ago | 0

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Answered
do you have some videos about tables in Matlab?
I can share some links of documentation and blog which are quite helpful: https://www.mathworks.com/help/matlab/matlab_prog/cre...

7 years ago | 0

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Answered
Use of handle in matlab 2013b
%%%% The below can be in a command window or in a separate script file h = counter ; % function call h(0) % ^----- x is zero ...

7 years ago | 0

Answered
How to combine te same elements in table
Requires 2018a or later: a=[ 1 1 24 1 52 1 53 4 % element 53 occurs 4 times 53 3 % the...

7 years ago | 1

Answered
Conversion of an matrix array
Second way: matrix(:).'

7 years ago | 0

Answered
Save each loop values, without overwriting
https://www.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html - essential for a loop and see how the variables are...

7 years ago | 0

Answered
Conversion of an matrix array
reshape(matrix,1,[])

7 years ago | 0

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Answered
I am attempting to only allow users to respond using the 'j' key or the 'k' key. For some reason MATLAB doesn't allow users to respond using the 'k' key. Instead it displays the error that "'k' is an undefined function or variable"
response=input(txt,'s') % ^^^---- missed it doc input % read what 's' does Note: See when you enter j you...

7 years ago | 0

Answered
I can not use the " lhs " instruction,but it seems that lots of people can use it.What is the problem ?
https://www.mathworks.com/matlabcentral/answers/438815-why-is-the-lhs-function-including-the-example-posted-in-the-mathworks-doc...

7 years ago | 0

Answered
how to split num to str ?
It’s possible using symbolic math toolbox. syms x y y=-x-2 coeffs(y)

7 years ago | 0

Answered
Graph looks like a dotted straight line
tb=(I*m*tl)./(2*u*q.*a) % is equivalent to (I*m*(2*u*q.*a))/(I*m*2*u*q.*a)) so everything gets cancelled out , you will have a ...

7 years ago | 0

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Answered
Group all the columns every N rows
Your way: N=2; A=mat2cell(a,repelem(N,size(a,1)/N)); celldisp(A)

7 years ago | 1

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Answered
Group all the columns every N rows
One way: N=2; [~,c]=size(A); U=reshape(A',c,N,[]); R=permute(U,[2 1 3])

7 years ago | 0

Answered
the value of my volume_bar function is shown to be incorrect. what am i doing wrong?
Volume_of_bar=pi*(d/2)^2*Length https://simple.wikipedia.org/wiki/Cylinder#Common_use

7 years ago | 0

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Answered
put all cells in one column cellfun
out= cellfun(@(w,e,r)[w;e;r],q1,q2,q3,'uni',0); % ^-----^------- square bracket!

7 years ago | 0

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Answered
Saving a text file with strings stored in cell array
for k=1:numel(a) dlmwrite(sprintf('%s.txt',a{k}),data) % can be any exporting command save , writetable etc etc. % ^^^^...

7 years ago | 0

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