Resuelto

Function composition
Write a function that accepts two function handles f and g and returns the composition h. That is, h = (f o g)(x) = f(g(x)) ...

casi 14 años hace

Resuelto

Return the Fibonacci Sequence
Write a code which returns the Fibonacci Sequence such that the largest value in the sequence is less than the input integer N. ...

casi 14 años hace

Resuelto

Solve the set of simultaneous linear equations
Given this pair of simultaneous linear equations: 2x + 3y = 23 3x + 4y = 32 Find the solution set (x,y)

casi 14 años hace

Resuelto

Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

casi 14 años hace

Resuelto

Multiply 2 numbers
Very easy, you just have to multiply 2 numbers but you cannot use the following signs (*, /, - ,^) ,mtimes , times, cross, pro...

casi 14 años hace

Resuelto

Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

casi 14 años hace

Resuelto

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

casi 14 años hace

Resuelto

Distance walked 2D
Suppose you go from x-y coordinates [3,4] to [0,0] to [0,1] to [1,1], then you walked 7 units of distance.

casi 14 años hace

Resuelto

Lose control
Remove all characters that are below space in ASCII value.

casi 14 años hace

Resuelto

Nearest
*Description* Find the value and index of the element in vector _x_ that is nearest to value _y_. _y_ should be able to be a ...

casi 14 años hace

Resuelto

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. ...

casi 14 años hace

Resuelto

Find matching parenthesis
One of the most indispensable things about a great text editor for programming is the ability to quickly jump between matching p...

casi 14 años hace

Resuelto

Implement a ROT13 cipher
Replace each character in string s1 with the character that is shifted 13 positions from it (wrap back to the beginning if neces...

casi 14 años hace

Resuelto

Back to basics 16 - byte order
Covering some basic topics I haven't seen elsewhere on Cody. Switch the byte order of the input (i.e. if little-endian -> big...

casi 14 años hace

Resuelto

Count photos
Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

casi 14 años hace

Resuelto

Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

casi 14 años hace

Resuelto

Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

casi 14 años hace

Resuelto

Angle between two vectors
You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

casi 14 años hace

Resuelto

Back to basics 15 - Benchmark
Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

casi 14 años hace

Resuelto

Which quadrant?
Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

casi 14 años hace

Resuelto

Remove the air bubbles
Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

casi 14 años hace

Resuelto

Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

casi 14 años hace

Resuelto

Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

casi 14 años hace

Resuelto

Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

casi 14 años hace

Resuelto

Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

casi 14 años hace

Resuelto

Twins in a Window
<http://en.wikipedia.org/wiki/Twin_primes Twin primes> are prime numbers that differ by 2, such as [11,13] or [41,43]. Write a f...

casi 14 años hace

Resuelto

Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

casi 14 años hace

Resuelto

Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

casi 14 años hace

Resuelto

Create a square matrix of multiples
Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

casi 14 años hace

Resuelto

Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

casi 14 años hace