Solved

Simple return on investment
Assume you have some money and want to invest all your money to stock market. You randomly select a stock and invest all your mo...

8 years ago

Solved

Decide whether determinant is zero.
Given a 3 x 3 matrix, find the determinant. Let y = true if the determinant is zero, and let y = false if the determinant is no...

8 years ago

Solved

Accessing elements on the diagonal
Access the diagonal elements of a matrix without 'diag' function

8 years ago

Solved

Convert a Cell Array into an Array
Given a square cell array: x = {'01', '56'; '234', '789'}; return a single character array: y = '0123456789'

8 years ago

Solved

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 ...

8 years 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...

8 years ago

Solved

Matlab Basics II - Determine if an array has a 3rd dimension
For an array A, determine whether it has 3 dimensions, return 0 if x is only 2D, and 1 if x is 3D

8 years ago

Solved

Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

8 years ago

Solved

Change string to number
Change given string to number. (hint: there is already function) Changing from ['1234'] to [1234] is one of example

8 years ago

Solved

Set a diagonal
Given a matrix M, row vector v of appropriate length, and diagonal index d (where 0 indicates the main diagonal and off-diagonal...

8 years ago

Solved

Convert Two Character String into a Binary Vector
Given a string "XOXXO" convert it into a binary vector. [1 0 1 1 0] Paul Berglund implemented an optimal method in <http://ww...

8 years ago

Solved

Polynomial division
Divide a polynomial u by polynomial v and return the quotients only. Example: u = x^4+3*x^3+5*x+3 v = x^2+1 Answer: ...

8 years ago

Solved

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

8 years ago

Solved

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...

8 years ago

Solved

Matrix FUN
Given a Matrix M, find out the number of elements of matrix that are divisible by 3. M = [1 2 3;4 5 6;7 8 9]; ou...

8 years ago

Solved

find the roots of a quadratic equation
for e.g x = [ 2 -1 -3] y = [1.5 -1]

8 years ago

Solved

Construct a string from letters and counts
Given two input arrays like this: [5,3,1] ['a','b','c'] Output a string that contains each letter the specified num...

8 years ago

Solved

7 segment LED display
Given a whole number, output how many segments would be lit up to display it on a 7 segment LED display (see Wikipedia: <http://...

8 years ago

Solved

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. ...

8 years ago

Solved

Eye Squared
For a positive integer |n| create the identity matrix with |n| elements. In case it is not possible to produce an identity ma...

8 years ago

Solved

Largest Prime Number
Given a matrix X, find the largest prime number in X.

8 years ago

Solved

Size of this cup?
The given vector has diameter of the cup in mm sampled at micrometer increments in depth from top to bottom, need output in cc a...

8 years ago

Solved

Proper Factors
Generate the proper factors of input integer _x_ and return them in ascending order. For more information on proper factors, ref...

8 years ago

Solved

Bruh
Return 'bruh'.

8 years ago

Solved

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...

8 years ago

Solved

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...

8 years ago

Solved

angle in regular polygon
Make a function which returns measure of interior angle in x-side regular polygon. x is as input. Please pay attention, that 1 ...

8 years ago

Solved

Upper triangular matrix
Create a function to retrieve the upper triangular matrix of a matrix (without using tril). The matrix will always be square. ...

8 years ago

Solved

Count number of words in string
Count number of words in string Examples 'hi', answer is 1 'hi hi', answer is 2 'I enjoy cody', answer is 3

8 years ago

Solved

Parallel vectors
Return true or false depending on whether 2 vectors are parallel or not. Vectors can be 2 or 3 dimensional. The origin is not c...

8 years ago