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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...

mer än 2 år ago

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Rotate input square matrix 90 degrees CCW without rot90

Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

mer än 2 år ago

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Check if equal

Return true if all the elements of an nD array are equal, false otherwise.

mer än 2 år ago

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Matlab Basics - Switching Assignments

Switch assignments for variables x and y, for example start with x = 1 and y = 3 end with y = 1 and x = 3 Do NOT simply r...

mer än 2 år ago

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Find Index of maximum Value and maximum Value of a vector

Find the Index of the first occurrence of the maximum value in a vector and also the maximum value in the vector. Example: [...

mer än 2 år ago

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Television Screen Dimensions

Given a width to height ratio of a TV screen given as _w_ and _h_ as well as the diagonal length of the television _l_, return t...

mer än 2 år ago

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Create an n-by-n null matrix and fill with ones certain positions

The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

mer än 2 år ago

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Calculate the Hamming distance between two strings

Inspired by a similar Cody problem found <http://www.mathworks.com/matlabcentral/cody/problems/93-calculate-the-levenshtein-dist...

mer än 2 år ago

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Sum of first n terms of a harmonic progression

Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

mer än 2 år ago

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Generate a string like abbcccddddeeeee

This is the string version of Problem 1035. <http://www.mathworks.com/matlabcentral/cody/problems/1035-generate-a-vector-like-1-...

mer än 2 år ago

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Calculate area of sector

A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

mer än 2 år ago

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UICBioE240 2.1

This will be useful later in the course, in conjunction to clc and clear all, what is the command to close all figure windows th...

mer än 2 år ago

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UICBioE240 problem 1.3

Find the length of a vector. So if A = [1 1 1 1 1] Then B = 5

mer än 2 år ago

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Let's see how peculiar we can get

The task is to multiply two numbers. But do it in the most peculiar possible way.

mer än 2 år ago

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Better bullseye matrix

<http://www.mathworks.com/matlabcentral/cody/problems/18-bullseye-matrix Problem 18> asks to create a bullseye matrix like this:...

mer än 2 år ago

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Cell Counting: How Many Draws?

You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

mer än 2 år ago

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How many jokers?

* Given DNA codes of a group of suspects, * and a code for certain types of jokers, * Count how many jokers of that type. * ...

mer än 2 år ago

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Triangle Numbers Below N

This is an offshoot of <http://www.mathworks.com/matlabcentral/cody/problems/5-triangle-numbers Cody Problem 5: Triangle Numbers...

mer än 2 år ago

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Matrix with different incremental runs

Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

mer än 2 år ago

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Determine if input is divisible by three.

Given a positive integer, n, determine if n is divisible by 3. If yes, the function should output true. If no, false.

mer än 2 år ago

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Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4

Example: in = magic(5) in = 17 24 1 8 15 23 5 7 14 16 4 6 13 20 ...

mer än 2 år ago

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Check that number is whole number

Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

mer än 2 år ago

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Remove the positive integers.

Given array,x, remove all the positive numbers and display ouput as y. Example x=[1 -2 3 -4] , output is y=[-2 -4].

mer än 2 år ago

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Find out total non zero element of matrix

Find out Non zero element of matrix A=magic(5) 17 24 1 8 15 23 5 7 14 16 4 6...

mer än 2 år ago

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Count decimal digits of a number

* Given an integer number you have to return the number of its digits. * For example 248 has 3 digits and 1589 has 4 digits ...

mer än 2 år ago

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Find nearest prime number less than input number

Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

mer än 2 år ago

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random picture with random colours

write a function which creates a random(x,y) matrix with random RGB colours for example create_pic(5,5) gives us a 3d matrix. ...

mer än 2 år ago