Answered
Fibonacci.m for Fibonacci Series
You function is not vectorized ... that is, it is not written to handle anything other than a scalar input. As written, you wou...

6 years ago | 0

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Answered
slicing matrix in efficient way
Another way: a = 1:120; r = reshape(a,30,[]); x = r( 1:10,:); y = r(11:20,:); z = r(21:30,:);

6 years ago | 1

Answered
ode45 and euler not working for random signal
You can't use random inputs with ode45( ). ode45( ) relies on the ability to call the derivative function at arbitrary times to...

6 years ago | 0

Answered
Fourth Order Runge-Kutta Method for the System of three Differential Equation
I don't really want to sift through all of that code, mostly because you are using different variables for the various states. ...

6 years ago | 1

Answered
calling a c function with calllib doesn't work with pointers
A basic general outline of freeing the memory would be: double *sortie = NULL; // top level variable void free_sortie(void)...

6 years ago | 0

Answered
Problem using a mex.c file
Looks like you need to compile the mex file. You will need to install a C compiler if you haven't already. If there is a build...

6 years ago | 0

Answered
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...

6 years ago | 1

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Answered
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...

6 years ago | 0

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Answered
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...

6 years ago | 0

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

6 years ago | 0

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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);

6 years ago | 0

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Answered
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 ...

6 years ago | 0

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

6 years ago | 0

Answered
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...

6 years ago | 0

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Answered
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...

6 years ago | 0

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Answered
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...

6 years ago | 0

Answered
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 ...

6 years ago | 0

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Answered
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 ...

6 years ago | 1

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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...

6 years ago | 0

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Answered
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...

6 years ago | 0

Answered
[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...

6 years ago | 0

Answered
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...

6 years ago | 2

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Answered
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 ...

6 years ago | 0

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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...

6 years ago | 0

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Answered
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 = ...

6 years ago | 1

Answered
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...

6 years ago | 1

Submitted

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

6 years ago | 9331 downloads |

5.0 / 5

Answered
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 ...

6 years ago | 0

Answered
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...

6 years ago | 0

Answered
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...

6 years ago | 2