# Radha Kumari

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Solved

Hankelize a matrix

Similar to <http://www.mathworks.com/matlabcentral/cody/problems/42501-toeplitize-a-matrix Problem 42501. Toeplitize a matrix>, ...

mer än 4 år ago

Solved

Toeplitize a matrix

Similar to <http://www.mathworks.com/matlabcentral/cody/problems/3094-hankelize-a-matrix Problem 3094. Hankelize a matrix>, now ...

mer än 4 år ago

Solved

matrix zigzag

Unfold a 2-D matrix to a 1-D array in zig-zag order, e.g., for matrix [ 1 2 3 ; 4 5 6 ; 7 8 9 ] the resulting 1-...

mer än 4 år ago

Solved

Too Many Zeros, Dump Them!

Sometimes when I create a matrix, I use this syntax: a = zeros(1000,1000); But when the function ends, I find that I don'...

mer än 4 år ago

Solved

A matrix of extroverts

Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

mer än 4 år ago

Solved

Enlarge array

Given an m-by-n numeric array (A) and a 1-by-2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m...

mer än 4 år ago

Solved

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 ...

mer än 4 år ago

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Remove entire row and column in the matrix containing the input values

Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...

mer än 4 år ago

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Matrix multiplication across rows

Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

mer än 4 år 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.

mer än 4 år ago

Solved

Write a function man that takes a row vector v and returns a matrix H as follows..

Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

mer än 4 år ago

Solved

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...

mer än 4 år ago

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Make a diamond

Given n, odd number > 1, return n by n matrix consist of "null" and "*" characters arranged like a diamond. No toolbox funct...

mer än 4 år ago

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Produce the following matrix

Produce the following matrix x = [2 3 4] y_correct = [1 1/2 1/3; 2 1 1/4; 3 4 1];

mer än 4 år ago

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Tent matrix

Create an n x n matrix that resembles one kind of tent. The variable n is provided to the function and will be an odd number. As...

mer än 4 år ago

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Vandermonde Matrix

Create the Vandermonde Matrix of the given vector. The matrix consists of columns as powers of the vector, so the first column i...

mer än 4 år ago

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Union Jack Matrix

Create a matrix of odd dimensions that has ones on both diagonals and dividing the matrix into 4 quadrants, resembling a square ...

mer än 4 år ago

Solved

Form a square matrix from four square sub-matrices

Create a square matrix, y, from 4 square sub-matrices that will be constructed (x1, x2, x3, x4): y = [x1 x2; x3 x4]; ...

mer än 4 år ago

Solved

Dice face matrix!

This is dice simulator, but instead of making a random die number, you will receive an "pre-rolled" number in and spit out a mat...

mer än 4 år ago

Solved

create a square matrix

create a [n*n] matrix. example: mat(4)= [ 1 4 9 16 4 4 9 16 9 9 ...

mer än 4 år ago

Solved

Create a square matrix with given conditions

Create a square matrix, M, which should be populated as follows: M = [ n^2 n * (n-1) n * (n-2) ... n * 2 n * ...

mer än 4 år ago

Solved

Check if a matrix is a palindrome in all directions

Check if a matrix is a palindrome both vertically and horizontally. You function will return *true* for |[1,2,1]| or |[2,7,2;...

mer än 4 år ago

Solved

Make a rainbow matrix (follow-up to checkerboard matrix)

Given an integer n, make an n-by-n matrix as shown below. The a(1,1) should be 0. As we move away from the top-left, the number ...

mer än 4 år ago

Solved

Diagonal Pattern

For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

mer än 4 år ago

Solved

BULLSEYE Part 2: Reference Problem 18 BULLSEYE

Given n (always odd), return output a that has concentric rings of the 1s and 0s around the center point. Examples: Input ...

mer än 4 år ago

Solved

Generate this matrix

For a given odd integer n, generate a matrix as follows: Input: n = 5; Output: [ 2 1 0 0 0 1 ...

mer än 4 år ago

Solved

Create a block diagonal matrix

A block diagonal matrix is a square matrix that can be written as A = [a 0 0 0 0 b 0 0 0 0 c 0 ...

mer än 4 år ago

Solved

Toeplitz Matrix

For a given square matrix of order n-by-n check whether this is a Toeplitz matrix or not. Return true if it is.

mer än 4 år ago

Solved

Numbers spiral diagonals (Part 1)

Inspired by Project Euler n°28 et 58. A n x n spiral matrix is obtained by starting with the number 1 and moving to the right...

mer än 4 år ago