Solved

Sort a list of complex numbers based on far they are from the origin.
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...

5 hours ago

Solved

Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

5 hours ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

5 hours ago

Solved

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...

5 hours ago

Solved

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

5 hours ago

Solved

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

5 hours ago

Solved

Summing digits
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 + ...

5 hours 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...

5 hours 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...

5 hours ago

Solved

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 ...

5 hours ago

Solved

Return the 3n+1 sequence for n
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...

5 hours 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...

5 hours ago

Solved

Matrix Pattern 3

6 hours ago

Solved

Nonuniform quantizer as a piecewise constant function
Implement a nonuniform quantizer as the following piecewise function: y = -3.5, x < -3 y = -1.5, -3 ≤ x < -1 y = ...

6 hours ago

Solved

Weighted average
Given two lists of numbers, determine the weighted average as follows Example [1 2 3] and [10 15 20] should result in 33.3...

6 hours ago

Solved

Cubic Integer Constrained Solution
Find an integral non-trivial solution (x,y,z ~=0) (x=0 or y=0 or z=0 are trivial) for the cubic equation 987,654,321x + 123,45...

6 hours ago

Solved

Number Puzzle - 023

6 hours ago

Solved

Powers Of
Fill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10). Complete the function ...

6 hours ago

Solved

Periodic Table 101.
Given the atomic number (z), answer the symbol for that particular element of the <http://en.wikipedia.org/wiki/Periodic_table/ ...

6 hours ago

Solved

Add Me To Death (Sum sum sum)
Given certain vector, sum of the input vector, get the sum of 2 adjacent numbers in the input, and sum of the output vector (wh...

6 hours ago

Solved

Create a recurrence matrix for a vector of data
In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

6 hours ago

Solved

Multiply each matrix element by its row index and add its column index.
Return a matrix the same size as the input, multiply each element by its row index and add its column index. Example: x = [ 1 ...

6 hours ago

Solved

Chess ELO rating system
The Elo rating system is a method for calculating the relative chess skill levels of players in competitor-versus-competitor gam...

6 hours ago

Solved

first step for Huffman Coding (easy)
Given a string, you must sort the characters by occurrence (from lowest to highest). This step is necessary to generate a Huf...

6 hours ago

Solved

Seperate array to small section according to its index position
Given a integer n, we can generate a sequence [0,1,2,3,4,..., 2^n-1], then we separate it to two sequence according to their ind...

6 hours ago

Solved

Spreadsheet Column Number
Spreadsheet uses an alphabetic naming system for columns, starting with 'A', 'B', 'C', etc. The column names continue like 'AB',...

6 hours ago

Solved

Number Puzzle - 094
Give an example of three unique numbers a, b, and c such that concatenating a^2, b^2, and c^2 is equal to d^4 for an integer d.

6 hours ago

Solved

The length of the equal sides of an isoceles triangle is 'a'.For all the possible (integer) values of the remaining side,find the associated angles between the two equal sides.
the remaining side may have many possible values.only assume integer ones for simplicity.

6 hours ago

Solved

Get the array of sum for three consecutive numbers in an array
Get the array of sum, for three consecutive numbers in an array. if Input 'x' does not have at-least 3 elements then 'y' shou...

6 hours ago

Solved

Number Puzzle - 029

7 hours ago