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# Joren Heit

29 total contributions since 2009

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Handle to an array of functions
Given a cell array of functions that operate on scalars, it is required to return a function handle to process a vector of value...

2 years ago

Submitted

Matlab 2048
Matlab implementation of the addictive game 2048

Solved

Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

4 years ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

4 years ago

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

4 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

4 years ago

Solved

Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

4 years ago

Solved

Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

4 years ago

Solved

Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

4 years ago

Solved

Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

4 years ago

Solved

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

4 years ago

Solved

Return the 3n+1 sequence for n
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...

4 years ago

Solved

The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

4 years ago

Solved

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

4 years ago

Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

4 years ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

4 years ago

Solved

Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

4 years ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

4 years ago

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

4 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

4 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 years ago

Submitted

Carcassonne
Emulation of the map-building game Carcassonne, including 4 expansion packs

Submitted

RISK
This is a digitalized version of the famous RISK board game.

Submitted

Zatacka/Achtung, die Kurve! for Matlab
Remake of the classic DOS-Game Zatacka aka Achtung die Kurve

Submitted

Rubik's Cube Simulator and Solver
This program simulates, manipulates and solves all rubik's cubes. Includes webcam recognition.

Question

How to remove whitespace around subplot figures?
I'm writing a report in LaTeX in which I need to include some MATLAB figures. One of them is a subplot consisting of 16 plots wh...

5 years ago | 2 Answers | 0

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Submitted

Tetris Solver (non-playable)
This program tries to solve the Tetris problem guided by 4 constraints. Block Editor included.

Responded

Re: matrix operations in F2
Not what I meant... I need to solve a set of equations like | 1 1 0 0 | | x1 | | 1 | | 1 1 1 0 | | x2 | = | 1 | | 0 1 1 1 ...

7 years ago | 1578 views

Posted

matrix operations in F2
Hi, I want to solve an equation of the form Ax=b, where A is an nxn square matrix, and x and b are nx1 column vectors. Ofcourse...

7 years ago | 1578 views