A résolu


Factorial Numbers
Factorial is multiplication of integers. So factorial of 6 is 720 = 1 * 2 * 3 * 4* 5 *6 Thus 6 factorial = factorial(720)....

environ 9 ans il y a

A résolu


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

environ 9 ans il y a

A résolu


Largest Twin Primes
<http://en.wikipedia.org/wiki/Twin_prime Twin primes> are primes p1, p2 = p1 + 2 such that both p1 and p2 are prime numbers. Giv...

environ 9 ans il y a

A résolu


surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

environ 9 ans il y a

A résolu


Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.

environ 9 ans il y a

A résolu


Roots
Find out the roots of a given polynomial equation.Given are the coefficients of the equation.

environ 9 ans il y a

A résolu


Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

environ 9 ans il y a

A résolu


"mirror" matrix
Create n x 2n "mirror" matrix of this type: e.g. for n = 2 m = [1 2 2 1;1 2 2 1] e.g. for n = 3 m = [1 2 3 3 2 1...

environ 9 ans il y a

A résolu


Compute Fibonacci Number
Compute the _n_-th Fibonacci Number f(0) = 0, f(1) = 1, f(2) = 1, f(3) = 2, ... f(42) = 267914296

environ 9 ans il y a

A résolu


Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

environ 9 ans il y a

A résolu


Back to basics 12 - Input Arguments
Covering some basic topics I haven't seen elsewhere on Cody. Return a value equal to the number of input arguments to the fun...

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A résolu


Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

environ 9 ans il y a

Problème


Logistic map
The sequence defined by x_n = 4*r*x_{n-1}*(1-x_{n-1}) and a given 0 < x_1 < 1 turns x_n for an n > 0 into a polynomial of r. ...

environ 9 ans il y a | 0 | 14 solveurs

A résolu


Concatenate two strings
Its very easy. Just concatenate two strings.

environ 9 ans il y a

A résolu


Back to basics 4 - Search Path
Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the user's portion of the current search...

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A résolu


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

environ 9 ans il y a

A résolu


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

environ 9 ans il y a

A résolu


Negative matrix
Change the sign of all elements in given matrix.

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A résolu


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

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A résolu


square root
Find the square root (y) of an input (x).

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A résolu


Say something funny
Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

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A résolu


Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

environ 9 ans il y a

A résolu


Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

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A résolu


Basics: 'Find the eigenvalues of given matrix
Find the eigenvalues y for a given matrix x.

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A résolu


square number
Square a number

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A résolu


Matlab Basics - Rounding I
Write a script to round x DOWN to the next lowest integer: e.g. x = 2.3 --> x = 2 also: x = 2.7 --> x = 2

environ 9 ans il y a

A résolu


Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

environ 9 ans il y a

A résolu


Back to basics 2 - Function Path
Covering some basic topics I haven't seen elsewhere on Cody. Given a string that is the name of a MATLAB function, return a s...

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A résolu


find the maximum element of the matrix
for e.g x = [1 2; 3 4] y = 4

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A résolu


First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

environ 9 ans il y a

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