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Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

6 years ago

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Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...

6 years ago

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Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

6 years ago

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Replace secondary diagonal elements of a square array
Replace all the secondary diagonal elements of the square array A with the number n Example: A = [1 2 3 4 5 6 ...

6 years ago

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subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

6 years ago

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Given a 4x4 matrix, swap the two middle columns
If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4]; then the result is ans = 1 3 2 4 1 3 2...

6 years ago

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We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

6 years ago

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How many digits are there?
Input(s) - any string Output(n) - number of digits within string s

6 years ago

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Replace Nonzero Numbers with 1
Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

6 years ago

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Orthonormal matrix
You decide whether any given matrix is an orthonormal matrix or not. If each column in a matrix is perpendicular to the other...

6 years ago

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Projector Matrix
Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.

6 years ago

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Linear system solve
Solve a linear set of equations as described in the following link: http://www.people.virginia.edu/~teh1m/cody/linsolv1.pdf

6 years ago

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Solve Linear equations
Solve Linear equations Example: x+y=2 and x+2y=3, then x and y equal to 1.

6 years ago

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Aquiles y la tortuga
Contaba Zenón en su famosa paradoja que un día Aquiles, el guerrero griego más veloz de la Hélade, se enfrentó a una pequeña tor...

6 years ago

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Is this matrix orthogonal?
Given a square matrix, a, determine whether it is orthogonal. INPUT: a, a n x n matrix OUTPUT: true or false

6 years ago

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Determine if input is a valid AHP evaluation matrix
Input is a matrix. Output is a true or false statement (1 or 0). Return true if input is a valid Analytic Hierarchy Process eval...

6 years ago

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Linear system of equations
Solve the system of equations in three variables.

6 years ago

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Combined Ages 1 - Symmetric, n = 3
You have probably seen the common riddle wherein combined ages are provided and you must determine the individual ages. For exam...

6 years ago

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Combined Ages 2 - Symmetric, n ≥ 3
Following on <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-3 Combined Ages 2>, you wil...

6 years ago

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How many Christmas presents under the tree?
For many families at Christmas, each family member gives 1 present to every other family member. The main exception is that chil...

6 years ago

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Question 1
Implement a function named q1 with one input argument named n. This function should return the multiplication of all odd numbers...

6 years ago

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Nilpotent matrix
Check if matrix A is <http://mathworks.com/ nilpotent>.

6 years ago

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Solve the set of simultaneous linear equations
Given this pair of simultaneous linear equations: 2x + 3y = 23 3x + 4y = 32 Find the solution set (x,y)

6 years ago

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Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...

6 years ago

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Wrapping the Tower of Pisa
The famous artist Christo Vladimirov Javacheff, who likes pizza, wants to wrap the well-known Italian tower in paper. It is a ci...

6 years ago

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Remove duplicated triangles
Input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a correspondi...

6 years ago

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Calculating large fibonacci numbers
The fibonacci sequence starts 1,1,2,3,5,8... Find the the n'th fibonacci number. Then calculate round(log10( . )) of that n't...

6 years ago

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generate the matrix
given 3 inputs e.g [2,3,4] -- generate a matrix like below -- [2 2 0 0 0 0 0 0 0; 2 2 0 0 0 0 0 0 0; 0 0 3 3 3 0 0 0 0; 0 0...

6 years ago

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Scrabble Scores
Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provi...

6 years ago

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ZigZag matrix with reflected format
ZigZag MATRIX with REFLECTED format. We have only input x. We have to create a matrix in the following pattern. input n=5...

6 years ago