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# Justin

13 total contributions since 2012

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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...

8 years ago

Solved

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

8 years ago

Solved

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 ...

8 years ago

Question

GUIDE: Issue designing window size in dual-monitor setup.
Hey folks, I noticed an odd behavior when adjusting the parent figure size in GUIDE. On my system, the maximum size you can ...

8 years ago | 0 answers | 1

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Datatips don't disappear
Try the following. If the figure is the current active figure, use the following: >> delete(findall(gcf,'Type','hggroup'))...

9 years ago | 4

Can I force a radio button group to initialize with a certain button selected?
First alternative is to use GUIDE. This will allow you to set a specific radio button to "selected" everytime the GUI initiali...

9 years ago | 2

Solved

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

9 years 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:...

9 years ago

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...

9 years 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 years ago

Solved

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

9 years ago

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 ...

9 years ago

Question

Faster method for polyfit along 3rd dimension of a large 3D matrix?
I am currently working with large data cubes in the form of an MxNxP matrix. The P-dimension represents the signal at each (m,n...

9 years ago | 2 answers | 1