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# Al Dente

30 total contributions since 2014

There is a very useful but undocumented feature in simulink/matlab programming: get_param(, 'TraceDestinationInputPorts') and get_param(, 'TraceSourceOutputPorts')
Also remember this: "setappdata"

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Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

bijna 5 jaar 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:...

bijna 5 jaar ago

How do I assign a column of a matrix as another matrix?
if z was matrix that looks like this: z = [1 2 3; 4 5 6; 5 6 0; 7 0 0; 0 0 0] I could get all the columns (positive numb...

bijna 5 jaar ago | 0

having problem with mvnrnd...
matlab is basically telling you that it can't find the function: which mvnrnd will probably result in: 'mvnrnd' not foun...

bijna 5 jaar ago | 0

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

bijna 5 jaar ago

How can I convert following script to function?
function xxx(image,p) a=imread(image); [m n] = size(a); % remove this line p = 2; if you don't w...

bijna 5 jaar ago | 0

removing zeros from column
A(A==0) = []

bijna 5 jaar ago | 0

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

bijna 5 jaar ago

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

bijna 5 jaar ago

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

bijna 5 jaar ago

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

bijna 5 jaar ago

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

bijna 5 jaar ago

No line on graph
your function: z = @(t)(((-0.005*pi*sqrt(5)*t)./2)+(2*sqrt(5)).^2); z(0:37.3) % would output values in the range of 19.3 t...

bijna 5 jaar ago | 0

How do I use trap?
area = trapz(x,y(x)) ?

bijna 5 jaar ago | 0

MATLAB function to get all dependent .m files to generate exe using MATLAB 2013b
This might help: profile on -history; % your code here profile viewer; p = profile('info'); It will give you al...

bijna 5 jaar ago | 0

Reference an excel workbook that's already open
actually XLex.ActiveWorkbook would give you a handle to the currently active workbook you can even XLex.Active...

ongeveer 5 jaar ago | 0

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replace matlab function with algorithm
your tags say prime, so I assume you want to find out prime numbers: isprime(i)~=0 would that be the answer to your ...

ongeveer 5 jaar ago | 0

How can I get this example?
try looking in this folder you might find something, I'm assuming you have Simulink Design Optimization: winopen([matlabroo...

ongeveer 5 jaar ago | 0

Question

how do I "locate file on disk" using matlab?
The answer is system(['explorer /select,' fullfilepath_here]) question is: is there a matlab function that one can use instea...

ongeveer 5 jaar ago | 1 answer | 0

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How to get the handle of simulink window in matlab
you can try using findall(0) -- root matlab handle, then looping over all the handles to find the right handle. What I wanted to...

ongeveer 5 jaar ago | 1

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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...

meer dan 6 jaar ago

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Is my wife right?
Regardless of input, output the string 'yes'.

meer dan 6 jaar ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

meer dan 6 jaar ago

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Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!

meer dan 6 jaar ago

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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...

meer dan 6 jaar ago

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

meer dan 6 jaar ago

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

meer dan 6 jaar ago

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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 ...

meer dan 6 jaar 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...

meer dan 6 jaar ago