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Determine the Anti-diagonal of a Magic Square
Determine the anti-diagonal (crossing from top right to lower left) of a magic square of size n. Examples If n = 3 y =...

11 years ago

Problem

Yet Another Path Finder
Assume there is a rectangular grid of points. These points are indicated by linear indices in a MATLAB-fashion. Some of the grid...

11 years ago | 1 | 32 solvers

Solved

Polite numbers. N-th polite number.
A polite number is an integer that sums of at least two consecutive positive integers. For example _7 = 3+4_ so 7 is a polite...

11 years ago

Solved

Lowest sum from a group of digits
Hi there. It's James's daughter here again, and my third grade math teacher is up to her old tricks. This time, she's giving u...

11 years ago

Solved

Check if it is a square or cube of consecutive numbers
Check whether the element of given row vector is a square or cube of consecutive numbers. For example Input x=[4 27 16 25 ...

11 years ago

Solved

It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
Given an input element x, and the dimensions, (m, n) return a matrix of size m x n filled with element x. This must be done in l...

11 years ago

Solved

Find the stride of the longest skip sequence
We define a _skip sequence_ as a regularly-spaced list of integers such as might be generated by MATLAB's <http://www.mathworks....

11 years ago

Solved

counting for loop
Complete the function below using a for loop to count from 3 to N by 2. For example, if N is 10, count 3, 5, 7, 9 and stop. Fo...

11 years ago

Solved

If-then-else
Complete the function below such that if the value of x is in the range 10 to 14, inclusive, the value 18 is assigned to y. Oth...

11 years ago

Solved

Matrix spiral
Make a spiral in a (n*n) matrix. The spiral has to start in the top left, and has to rotate clockwise to the center. The spiral ...

11 years ago

Solved

Identify Reachable Points
Given a vector of 2-D Points and a vector of 2-D Deltas create an array of all Locations that can be reached from the points usi...

11 years ago

Solved

Broken numlock key, oppps !
The numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am n...

11 years ago

Solved

Method of Common Differences part-2
This is the inverse problem to <http://www.mathworks.com/matlabcentral/cody/problems/1485 Problem 1485>. Problem 1485 illustra...

11 years ago

Solved

English to Pig Latin Translator
Pig latin is a faux-language based off of English. The rules are as follows (excerpted from the wikipedia entry for Pig Latin): ...

11 years ago

Solved

Reduce - Map-Reduce
Write reduce function, that takes arguments and constantly folds results into next call argument, finally returning a value; ...

11 years ago

Solved

Legendre polynomials
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Legendre_polynomials Legendre polynomial>. *Ex...

11 years ago

Solved

Generate Square Wave
Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...

11 years ago

Problem

Generate Square Wave
Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...

11 years ago | 7 | 262 solvers

Solved

Decrypt the cypher using XOR encryption (for beginners)
Inspired by Project Euler n°59 Each character on a computer is assigned a unique code and the preferred standard is ASCII (...

11 years ago

Solved

Functional inputs
Return an n-dimensional array whose elements are the results of a function over a set of vectors. The (i,j,k, ...n)th element...

11 years ago

Solved

Formatting currency numbers
Given a number, format it properly for textual display using the notation $xxx,xxx,xxx.xx. Assume that no more than two digits ...

11 years ago

Solved

Double Deal
*Description* Given an input vector _v_, return the first element as the first output, the second element as the second outpu...

11 years ago

Solved

Find out value of polynomial at different value.
Find out value of polynomial at different value. Example p(s) = s + 8 For s=0, value is 8.

11 years ago

Solved

Find out the Gray Code for a Given Binary Number
Find out <http://en.wikipedia.org/wiki/Gray_code Gray Code> for a given binary number Example Binary input 1000 Gray ...

11 years ago

Solved

Gamma Function
Evaluate the <http://en.wikipedia.org/wiki/Gamma_function/ Gamma Function>. Gamma_val(0) = Inf Gamma_val(1.2) = 0.9182

11 years ago

Solved

Find out characteristics equation of given matrix.
Find out characteristics equation of given matrix. A=[0 2; 1 8] then char. eq is s^2-8*s-2=0 and answer should be [1 -8 -2] ...

11 years ago

Solved

Did you say please? - Find one string within another without strfind or regexp/regexpi
For a given string sentence, determine if the string word 'please' is present or not. If so, return the string 'OK', else return...

11 years ago

Solved

Concatenate string with cell array of strings
Given a cell array of strings (a), a target string (b), and a target position (ind), return a cell array of strings (c) in which...

11 years ago

Solved

Partial sorting algorithm
Return the top k elements of an input vector. A comparison function compareFcn(m,n) is provided to compare individual elements o...

11 years ago

Solved

What is the scope of variables in Matlab ?
How to do this little hack ? a=10; b=5; y=change_var(a,1); assert(isequal(a,1))

11 years ago