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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. * ...

7 years ago

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Back to basics 5 - Clipboard
Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

7 years ago

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Number of odd and even elements within matrix
Input(m) - any matrix with integers Output(n) - n(1)=number of odd elements, n(2)=number of even elements Example: * m=...

7 years ago

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Is It a Palindrome?
Given a string or array, determine if it is a palindrome.

7 years ago

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Where is she?
Given the numbers 12, 3, 6, 9 Tell where the girl is located. That is: Look to your 3 o'clock = look right Example ...

7 years ago

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Remove and Sort
Given a randomized array n, sort it and remove all odd integers. n=5 y = [2 4]

7 years ago

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Kinetic Energy
Given the mass m and velocity v of an object, determine its <http://en.wikipedia.org/wiki/Kinetic_energy kinetic energy>.

7 years ago

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Test if a matrix is symmetric
Write a logical function that returns 1 if the input matrix is symmetric and 0 otherwise.

7 years ago

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square a vector-Given the variable x as your input, square it and put the result in y.
function y = (x)squared y = x; end

7 years ago

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Find the average of a random sequance
Write a function that generates random integers within a loop, and calculates the mean of the positive numbers only. At each ...

7 years ago

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Set some matrix elements to zero
First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

7 years ago

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Basics: Divide integers to get integer outputs in all cases
Divide integers a and b in such a way that output y is always an integer (in ceil manner)

7 years ago

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Rotate matrix by -90 degrees
Rotate a Matrix by -90 degrees Example: X = 1 2 3 4 5 6 7 8 9 output = 7 4 ...

7 years ago

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How many monitors are connected ?
How to obtain the numbers of monitors connected to your computer ?

7 years ago

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Reverse a string
Reverse the given string. Example input = 'reverse' output = 'esrever'

7 years ago

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Find out sum of prime number till given number
Find out sum of prime number till given number Example, if number is 10, then answer must be 17.

7 years ago

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Change the first and last diagonal element of the identity matrix to zero
Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

7 years ago

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Is it column vector?
Is it column vector? Check vector for column vector without using iscolumn function.

7 years ago

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Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...

7 years ago

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Find and replaces spaces from a input string with *
For a given input string str, find how many spaces are there in the string and replace those spaces with * e.g. str = 'this is ...

7 years ago

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Given a matrix A (size m x n) create a matrix B (size m+2 x n+2) which consists of matrix A surrounded by zeros. See Example below:
A = [1 2 3 4 5 6] ----------- B = [0 0 0 0 0 0 1 2 3 0 0 4 5 6 0 0 0 0 0 0]

7 years ago

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Given a Vector v1, create v2 which is the sum of each two adjacent elements in v1. {length(v2)=length(v1)-1}
if v1 is [1 2 3 4 5 6 7 8] then v2 should be [3 5 7 9 11 13 15]. if v1 is [1; 3; 5; 7] the...

7 years ago

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Remove the first, third and fifth rows of a matrix
Given a matrix x with at least five rows, return a matrix y that includes all rows of x except for th 1st, the 3rd and 5th. E...

7 years ago

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Convert a vector into numbers
Suppose a vector x = [ 1 2 4 7] is given. You have to convert this vector into string number y = '1247'. Examples x = [ 1...

7 years ago

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Speed of car
Calculate the Speed of car given its Distance travelled and time taken in x and y respectively

7 years ago

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Write a code that will follow the equation y = x * (x + x) * x.
If x = 5, y = 5 * (5+5) * 5 = 250

7 years 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].

7 years ago

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Vector Magnitude Calculator
'a' is a vector that starts at the origin and ends at (x, y). Find ||a||. Hint: It is as simple as "ABC".

7 years ago

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Product of elements in row
Product of matrix such that a=[3 3 1] b=9

7 years ago

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Matlab Basics II - Create a vector with a repeated entry
Create a row vector of length n, filled with 4's, for example, if n = 3 output = [4 4 4] make sure to round UP when n is a...

7 years ago