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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

Answered

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...

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

| accepted

Answered

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...

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

| accepted

Answered

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...

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

| accepted

Answered

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...

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

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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

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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...

2 years ago

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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

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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...

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

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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 ...

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

Answered

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...

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

Answered

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...

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

| accepted

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

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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.

4 years 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 ...

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