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

Solve this!

11 months ago

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]

Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

2 years ago

This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

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...

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

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

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

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

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...

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...

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

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

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.

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

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...

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

3 years ago

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

Check if sorted. Example: Input x = [1 2 0] Output y is 0

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 + ...

Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

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...

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

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

If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

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...

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

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

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