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Flip the bit
Given an input character string (e.g. '1001'), return a character string with the bits flipped ('0110').

1 year ago

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Flipping a Matrix
Flipping matrix up and down. If a central row is exists, leave it, and flip remaining rows. Example Mat = magic(3) ...

1 year ago

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swap sign sum & multiply castles
It is an easy problem, if you know the answer. Given a square matrix of NxN ordinary numbers. Initially place N identical indi...

1 year ago

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Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

1 year ago

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Half-Swap
Given a vector with an even number of elements, rearrange it so that the elements in its first half are switched with those i...

1 year 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...

1 year ago

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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]; ...

1 year ago

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Sum the 'edge' values of a matrix
Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...

1 year ago

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Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

1 year ago

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Find the product of a Vector
How would you find the product of the vector [1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0] times 2?; x = [1 : 0.5 : 6]; y ...

1 year ago

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Calculate sin(x) without sin(x)
Calculate y = sin(x) x = 0 -> y= 0 without the use of sin(x) or cos(x)

1 year ago

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Calculate cosine without cos(x)
Solve cos(x). The use of the function cos() and sin() is not allowed.

1 year ago

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Switch matrix to a column vector
for e.g. x = [1 2 3 4] y = 1 3 2 4

1 year ago

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Find the minimum element of the matrix
Example: If x = [3 9; 5 2] then y = 2

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find the maximum element of the matrix
for e.g x = [1 2; 3 4] y = 4

1 year ago

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vectorization in N
For a given integer n (n>1), compute the sum f (i) (1 <= i <= n) where f (i) = 1 if n is odd and 2 otherwise.

1 year ago

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Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

1 year ago

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Create a Standard Size Vector
Given an input x, create a row vector y from 1 to x with 5 elements.

1 year ago

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Square a Number
Given an input x, return y, which is equal to the square of x.

1 year ago

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Let's get back to school, and create multiplication tables
For a given range, create multiplication tables. (start is always < endno) Example start = 17 endno = 19 Then, ...

1 year 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 ...

1 year ago

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Sum the squares of numbers from 1 to n
For a given value of n return the sum of square of numbers from 1 to n. Example For n = 2 then sum of squares = 5 (1^2 + ...

1 year ago

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find the mean of all elements in a matrix
given a matrix, just find the mean of all elements in the matrix

1 year ago

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Determine whether the input is divisible by 3 as well as 5
If the input is divisible by 3 as well as 5 then the output should be 'true' otherwise 'false'

1 year ago

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Find remainder when x is divided by 3
Find remainder when x is divided by 3

1 year ago

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multiply an array by its position number
You have given an array. Multiply an array by its position number

1 year ago

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What day is it?
Tell me what day is it. Return the full name of the day of the week as a string. e.g. It's June 12th 2014, so your function s...

1 year ago

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Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

1 year ago

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matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

1 year ago

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Make an identity matrix whose diagonal elements are 1:n
For a given input n, make an n by n identity matrix that contains the elements 1:n along its diagonal. For example, if input=5: ...

1 year ago