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View Reshape Function Code
All it basically does is replace the dimensions with the requested dimensions in the internal variable header. There wouldn't b...

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arrayfun syntax and use with scalar input
To use a scalar you could use this syntax: a=[1 2;3 4]; b=2; c=arrayfun(@(x)x+b,a); The function handle would pi...

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Access violation detected - MEX
If it worked fine on 32-bit, then of course the most likely problem is you missed something in the integer or pointer size conve...

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how to plot a polynomial?
doc polyval doc colon doc plots doc roots

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Use of arrayfun but with passing a fixed variable to function handle?
matrix(:,3) = arrayfun(@(a,b)max(diff(spikeTimes(a:b))),start_temp,stop_temp);

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howto organize an array into groups of n-Elements
Another way: x = 1:100; a = reshape (x,5,20); aa = [a;a]; v = cell(1,5); for k=1:5 v{k} = aa(k:k+4,:); end Then the ...

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using for loop with if
I'm guessing you want a newline at the end? fprintf(' Ik = %.f \n', abs (Ik))

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movements of the descent vehicle in the atmosphere of Earth
You have four differential equations involving four variables: V, theta, H, and L. You have to solve these simultaneously since...

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Error: Matrix dimensions must agree & Error: Function called failed while converting my code to C
This line: mat = (z).^(0:n+1); uses implicit expansion. z is a column vector and (0:n+1) is a row vector, so the result is in...

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Can somebody help me to modify this code?
In this Brot = q.B.(q^-1) and this B = (q^-1). Brot.q expression, the dot (.) is likely supposed to represent quaternion mul...

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How can I call a *.dll file on a Mac?
dll's are compiled object code specific to the machine type they are compiled for. Are you trying to load the same dll file on ...

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Inefficiency in MEX function when passing data into output
I am not sure you have enough insight into how codegen is going to code the randi, bsxfun, times, and sum functions to get what ...

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Invalid Mex file: Undefined symbol: mxrErrMsgTxt
All of the mxGetErrMsg references have been commented out in your posted code, so that is not the problem. I would guess that y...

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I have a C function created using Compiler CDK and it's returning a large array but it's MxArray** type. How do I access all the data retunred to the calling C function?
A function signature like that typically means that the mlfMPrime_CA_P( ) function is creating an mxArray and then returning the...

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[SOLVED] Why is 'size_t' in external C library interpreted wrong?
I am unaware of MATLAB treating size_t differently, but there is a potential error in your code snippet: int foo(size_t sz, uin...

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How can I speed up an exponential function?
I'm not sure what the issue is since you seem to already know about logical indexing. E.g., test1 = your data x = test1 > 0.0...

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Result of asind changed between R2016b and R2019b
This is a bit strange. I would have expected the later version to be better, but it appears to be worse: >> version -release ...

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could you help me with this explanation?
It's possible you just need to switch to element-wise operators. E.g., OverallEffectinevess = (MassFlowFunction.*ConvectionCoo...

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Solving Coupled ODE's by ode45
Start with your example (assuming that dx/dy was supposed to be dx/dt as you had originally): dx/dt = 3*(dy/dt) + 4*x, dy/dt = ...

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How can convert binary Numerical Values to Strings?
E.g. >> b = rand(5)<.5 % generate some sample data b = 5×5 logical array 0 0 0 1 1 0 1 0 1 1 1...

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IEEE 754r Half Precision floating point converter
Converts MATLAB or C variables to/from IEEE 754r Half Precision floating point bit pattern.

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how do you program the file path when you do not know where the person will save the matlab file you send them?
If you don't want to write code to search multiple directories to find the files, your code is going to have to ask the user to ...

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how do I get only 1 variable passed through a function?
switch choice; case '1' fprintf('What is the circle''s radius?\n') r = input(' '); [C,E] = circu...

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How do I create a matrix with all binary combinations?
dec2bin(0:2^N-1) - '0' Note that this is only practical for relatively small values of N. Even moderatly large N can cause thi...

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Not getting expected results
I get the identity matrix with your code: >> phi = 0; >> psi = 0; >> theta = 0; >> R=[cosd(phi).*cosd(psi)-sind(phi)...

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Obtain specific dimension from multidimensional Arrays
Not really sure what you are asking, but if you only want to pick off some indexes from an arbitrary dimension, simply supply th...

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How to exit a while loop after a certain number of values have been saved to a matrix
The general form for while loops is typically some variation of these: while( condition ) % stuff that eventually alters t...

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Using an array as input argument of a function handle
c = num2cell(a); J_num = J(c{:});

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How to find the average of monte carlo simulation
You could save the r's in a vector. E.g., r(i) = poissrnd(lambda); Or you could generate all of the r's at once without the lo...

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error decimal aproximation, extra decimal
Welcome to the world of floating point arithmetic! See this link: https://www.mathworks.com/matlabcentral/answers/57444-faq-wh...

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