Community Profile

# Erik Luiten

914 total contributions since 2016

View details...

Contributions in
View by

Solved

Volume Pillar
Calculate the volume of a pillar with radius l and heigth ar.

meer dan een jaar ago

Solved

Find the next prime number
Find the next prime number or numbers for given n. For example: n = 1; out = 2; or n = [5 7]; out = [7 11]; ...

meer dan een jaar ago

Solved

Find all repeated numbers
For a given vector, find all numbers that repeated 2 times or more than 2 times. Example: A=[1 2 3 3 4 5 6 6 7] y=[3 ...

meer dan een jaar ago

Solved

Draw a 'X'!
Given n as input Draw a 'X' in a n-by-n matrix. example: n=3 y=[1 0 1 0 1 0 1 0 1] n=4 y=[1 0 0...

meer dan een jaar ago

Solved

Minimum Maximum Sort Array
sort one array by put minimum value followed by maximum as follow a=[2 3 1 5] and the solution is y=[1 5 2 3 3 2 5 1];

meer dan een jaar ago

Solved

Draw a 'Z'.
Given _n_ as input, generate a n-by-n matrix like 'Z' by _0_ and _1_ . Example: n=5 ans= [1 1 1 1 1 0 0 0 1 ...

meer dan een jaar ago

Solved

Prime numbers between a , b.
Find all prime number between a & b (including a and b). example: a=100 b=120 y= [101 103 107 109 113]

meer dan een jaar ago

Solved

Calculate mean value of any pair in a vector.
Given a vector A, calculate the mean of 2 number in the vector one by one. example: input: A=[1, 5, 6, 8, 9, 15] output:...

meer dan een jaar ago

Solved

Find parts of a circle.
Given radius (r) of a circle find the diameter (d), circumference (c), an area (a).

meer dan een jaar ago

Solved

Repetition of matrices
*A is a bold matrix: [1 2 3; 4 5 6;7 8 9]* Given an integer 'n' , a matrix B exists such that has n copies of A in the row an...

meer dan een jaar ago

Solved

Basic matrix operations using standard MATLAB commands
Create the matrix: 1.0e+15 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000...

meer dan een jaar ago

Solved

Sum of diagonals
Compute the sum of diagonal elements of a square matrix and store the larger sum to s. Eg : a = [1 2 3; 2 3 4; 4 5 10] ...

meer dan een jaar ago

Solved

The answer to life the universe and everything
Write a function that gives the answer to life the universe and everything to every input except the input is 42. In this case t...

meer dan een jaar ago

Solved

Return median of a matrix
Compute median of a matrix of any dimension. Exclude the NaNs if any.

meer dan een jaar ago

Solved

Product of all elements in an array
Compute the product of all elements in an array.

meer dan een jaar ago

Solved

Delete the rows in the middle
We will delete the rows in the middle and keep the first and the last rows. For example if input is [1 2 1 7 1 8 ...

meer dan een jaar ago

Solved

Sum Rows
Sum the same indexed (unique) rows. Examine the test suite. Related Challenge - <http://www.mathworks.com/matlabcentral/cody/...

meer dan een jaar ago

Solved

surface areas of a cylinder
There are 3 inputs: option, radius and height. If option= '1', compute the lateral surface area of the cylinder, for option 2 ca...

meer dan een jaar ago

Solved

Find NaNs in the matrix
Return 1s wherever there is a NaN in the input matrix

bijna 2 jaar ago

Solved

Finding an element in a vector
x is a vector of unknown length your function should return the index of the first element in the vector that is greater than...

bijna 2 jaar ago

Solved

Add the input numbers to the original.

bijna 2 jaar ago

Solved

Determine the number of correct and incorrect answers
In a Multiple Choice Question Test, you are to sort out answer from 4 samples, one of them is correct answer. There are 50 quest...

bijna 2 jaar ago

Solved

poll: would you like the regexp (?@cmd) functionality to be banned in Cody?
This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

bijna 2 jaar ago

Solved

Calculating the total earnings of a factory
The row vector, prods contains the number of various products manufactured per hour. The second row vector, prices holds values ...

bijna 2 jaar ago

Solved

Normie Function (2)
Another _Normie Function_ defined as _f(n)= f(n-1)+f(n-2)+f(n-3)_ , *when n>3* and _1_ , *when n<=3*. *Find the nth term of this...

bijna 2 jaar ago

Solved

Normie Function
So, I built a function and gave it a name- _Normie_. *Find the nth term of Normie function:* _f(n)= 1*f(n-1)+ 2*f(n-3)+ 3_ , *...

bijna 2 jaar ago

Solved

subtraction of two nos
given a and b, subtract and give the answer

bijna 2 jaar ago

Solved

Happy Free March!
Just submit your solution in any March. *Related Challenges:* # <https://www.mathworks.com/matlabcentral/cody/problems/445...

bijna 2 jaar ago

Solved

Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

bijna 2 jaar ago

Solved