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Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

Solve this!

8 months ago

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

Create a variable _m_ as a magic square with the size 6 x 6 Magic squares are defined as square matrices, where the sum of a...

2 years ago

Imagine a square tile with four numbers on it, one on each edge. We will call these edges north, east, south, and west. If th...

Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...

You have a stack of tiles to put onto an array-like playing board. Each tile has a number (always an integer), and the board var...

Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

3 years ago

Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...

Function must convert the input vector x composed of 0 and 1 (length is a multiple of 8) in hexadecimal. Most significant bit is...

Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

4 years ago

Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

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

Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

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

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

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

Regardless of input, output the string 'yes'.

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...

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

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