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Solved

Increment a number, given its digits

Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

8 years ago

Solved

Matrix of almost all zeros, except for main diagonal

Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

8 years ago

Solved

Knight's Tour Checker

Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

8 years ago

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Create an array (n,n) where only diagonal elements are '1' and others are '0'

Create an array (n,n) where only diagonal elements are '1' and others are '0' EX: n = 3; then Resultant array would be [ 1 0...

8 years ago

Solved

Sum my indices

Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

8 years ago

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Small aircraft weight limit

Write an if-else statement that evaluates to true if the sum of passengerWeight and cargoWeight is less than or equal maxWeight....

8 years ago

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Remove the vowels

Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

8 years ago

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Sums with Excluded Digits

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

8 years ago

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Writing a while loop

Write a while loop that continues to increment userValue by 5 until userValue is less than 0.

8 years ago

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Determine the full width at half max

Determine the full width at half max of a curve. The full width at half maximum (FWHM) is a parameter which is used for desc...

8 years ago

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What's the missing interior angle?

I'm talking about polygons... The sum of the interior angles of a triangle is 180 degrees. The sum of the interior angles of a...

8 years ago

Solved

While loop: Summation

Write a while loop that assigns summedValue with the sum of all values from 1 to userNum. Assume userNum is always greater than ...

8 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...

8 years ago

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Find the two most distant points

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

8 years ago

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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. Example...

8 years ago

Solved

The Goldbach Conjecture, Part 2

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

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

Solved

Summing Digits within Text

Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

8 years ago

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Making change

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

8 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...

8 years ago

Solved

Binary numbers

Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

8 years ago

Solved

Target sorting

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

8 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...

8 years ago

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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...

8 years ago

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Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

8 years ago

Solved

Return the largest number that is adjacent to a zero

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

8 years ago

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Nearest Numbers

Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

8 years ago

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Back and Forth Rows

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...

8 years ago

Solved

Convert yards to feet

The goal of this script is to convert a value given in yards to feet.

8 years ago

Solved

Get all corner elements from a matrix where dimension of matrix is always equal to or greater than 2.

if a given matrix a = [1 2 3;4 5 6]; so answer is going to be [1 3;4 6]

8 years ago