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# Shane L

##### Last seen: 1 day ago
30 total contributions since 2016

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Find matching parenthesis
One of the most indispensable things about a great text editor for programming is the ability to quickly jump between matching p...

10 months ago

Storing a Square Wave in an array that is more than just one row
As you noted, your t and image arrays are 1 x W, whereas your temp array is W x H. When you try to index temp(:,x) = image; yo...

10 months ago | 1

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How to add more than two elements of a cell, where each element in the cell is a matrix of identicle size?
Try this: sum(cat(3, M{:}), 3) This first concatenates all of the arrays in the cells of M into a three-dimensional numeric ar...

1 year ago | 1

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Can I plot multiple polar histograms together?
The problem is that subplot creates axes, whereas polarhistogram requires polar axes (see polaraxes). I don't know of an equival...

1 year ago | 0

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How do I get a "tabular" legend?
If you are looking for a code that is built to create a "tabular" legend, my <https://www.mathworks.com/matlabcentral/fileexchan...

2 years ago | 0

Submitted

GridLegend
Creates a legend in which the entries are arranged in a grid

2 years ago | 20 downloads |

Solved

"Cody" * 5 == "CodyCodyCodyCodyCody"
*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

2 years ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

2 years ago

Solved

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

2 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

2 years ago

Solved

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

2 years ago

Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

2 years ago

Solved

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...

2 years ago

Solved

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

2 years ago

Solved

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...

2 years ago

Solved

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...

2 years ago

Solved

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. Examp...

2 years ago

Solved

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 ...

2 years ago

Solved

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...

2 years ago

Solved

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

2 years ago

If I start with a matrix of zeros, how can I easily create a circle of ones in that matrix?
One way to do it (not necessarily the most efficient, but easy to understand): Z = zeros(99); % create square matrix of zer...

3 years ago | 2

Spectrogram behaves unexpectedly when changing input values systematically
The 2nd argument (if it is a single integer), WINDOW, is not the number of time segments into which to split the data, but the l...

3 years ago | 2

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Solved

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

4 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 ...

4 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...

4 years ago

Solved

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

4 years ago

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

4 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 ...

4 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...

4 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:...

4 years ago