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

Solve this!

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

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

Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

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...

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

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

You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

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

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 ...

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

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

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 ...

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...

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

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

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