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# Michael Croucher

##### Last seen: 1 dag ago
23 total contributions since 2020

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Question

Variable precision arithmetic in ode45 and others?
Is it possible to use vpa in ordinary differential equation solvers like ode45?

2 dagen ago | 3 answers | 0

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Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

3 dagen ago

Random numbers from CDF
You can pass your pd to the random function. Does this do what you want? To get a 100000 by 1 vector of random numbers from yo...

3 dagen ago | 0

Solved

Given a and b, return the sum a+b in c.

9 dagen ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

9 dagen ago

Can I schedule a job in Matlab online
One way of achieving your aim would be to use the public cloud. Compile your .m file using MATLAB Compiler, install it on a clo...

12 dagen ago | 0

stl export for geometry from pointcloud/array
I should start this answer with 'I have no idea what I'm doing here'. I found your question interesting and have had a go at it...

18 dagen ago | 0

| accepted

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

26 dagen ago

How do I write a 3D matrix to a file, and then read it back in?
I haven't played with the matfile function in this way before so tried a little experiment that may also serve to help you use t...

ongeveer een maand ago | 1

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

ongeveer een maand ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

ongeveer een maand ago

Compiling matlab code for the cluster
You need to compile on a Linux machine. You may find that you can compile on the cluster in question -- something to check with...

ongeveer een maand ago | 0

Path between 2 nodes in a graph
One way to proceed would be to use concomp. Take this example graph s = [1 2 2 3 3 3 4 5 5 5 8 8]; t = [2 3 4 1 4 5 5 3 6 7 9...

ongeveer een maand ago | 0

| accepted

No print contents in slurm.out files
I can't test this as I don't currently have access to a SLURM cluster with MATLAB on it. I guess you submit jobs using the sbat...

ongeveer een maand ago | 0

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How to insert multiple spreadsheets to a workbook from Matlab
You can add the number of sheets as an extra argument. So, for 5 sheets: eNewSheet = Add(eSheets,[],eSheet1,5);

ongeveer een maand ago | 0

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How to import symbolic expressions from Python to MATLAB?
Imagine your friend had a Python function that created that expression. Let's call it create_symbolic_expression() and put it i...

ongeveer een maand ago | 2

| accepted

Import excel data from web doesn't work
The main issue is that MATLAB doesn't recognise what Sheet name within that spreadsheet that you want to import. This gets you ...

ongeveer een maand ago | 0

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fmincon optimization in matlab using OutputFcn
Following the advice at https://uk.mathworks.com/help/matlab/math/output-functions.html, we can use the 'OutputFcn' option. By ...

ongeveer een maand ago | 0

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fsolve options generate different results
We can learn a little more by asking for more output from fsolve [x,~,~,output_no_options] = fsolve(fun,x0); opts = optimopt...

ongeveer een maand ago | 0

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How to get convergence in Gradient descent algorithm?
Here's my MATLAB port of that code data=dlmread('data.csv'); X = data(:,1); Y = data(:,2); %Building the model m = 0; c ...

ongeveer een maand ago | 1

| accepted

Unary operator '-' is not supported for operand of type 'function_handle' in for loop function
You have defined D as a function but in line 36 you are not using it as a function. You have defined it as a function of a vari...

ongeveer een maand ago | 1

| accepted