A résolu


Mersenne Primes vs. All Primes
A Mersenne prime (M) is a prime number of the form M = 2^p - 1, where p is another prime number. <https://www.mathworks.com/matl...

presque 4 ans il y a

A résolu


The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

presque 4 ans il y a

A résolu


Project Euler: Problem 7, Nth prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the Nth prime nu...

presque 4 ans il y a

A résolu


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]; ...

presque 4 ans il y a

A résolu


Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

presque 4 ans il y a

A résolu


Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

presque 4 ans il y a

A résolu


Integer Sequence - II : New Fibonacci
Crack the following Integer Sequence. (Hints : It has been obtained from original Fibonacci Sequence and all the terms are also ...

presque 4 ans il y a

A résolu


Return fibonacci sequence do not use loop and condition
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: ...

presque 4 ans il y a

A résolu


Find the next Fibonacci number
In the sequence of Fibonacci numbers, every number is the sum of the two preceding ones: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55...

presque 4 ans il y a

A résolu


factorial of a number x
Factorial of a number x

presque 4 ans il y a

A résolu


Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

presque 4 ans il y a

A résolu


Determine if input is divisible by three.
Given a positive integer, n, determine if n is divisible by 3. If yes, the function should output true. If no, false.

presque 4 ans il y a

A résolu


Square the input
Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

presque 4 ans il y a

A résolu


Speed of car
Calculate the Speed of car given its Distance travelled and time taken in x and y respectively

presque 4 ans il y a

A résolu


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. ...

presque 4 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...

presque 4 ans il y a

A résolu


Make a vector of prime numbers
Input(n) - length of vector with prime numbers Output(v) - vector of prime numbers Example: * n=1; v=2 * n=3; v=[2 3 5...

presque 4 ans il y a

A résolu


Volume and area of a sphere
Input(r) - radius Output([v,s]) - volume and area

presque 4 ans il y a

A résolu


Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

presque 4 ans il y a

A résolu


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

presque 4 ans il y a

A résolu


Flip the bit
Given an input character string (e.g. '1001'), return a character string with the bits flipped ('0110').

presque 4 ans il y a

A résolu


Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

presque 4 ans il y a

A résolu


Cull vector elements that contain a specified digit
Given inputs of (1) a row vector and (2) a digit, identify the elements of that vector that contain the digit, remove them, and ...

presque 4 ans il y a

A résolu


Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

presque 4 ans il y a

A résolu


Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

presque 4 ans il y a

A résolu


CONVERT TAN TO SIN
In a right angle triangle ABC given the tan(A) then find sin(A) For example tan(A)=3/4 then sin(A)=3/5

presque 4 ans il y a

A résolu


Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

presque 4 ans il y a

A résolu


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

presque 4 ans il y a

A résolu


Min of a Matrix
Return the minimum value in the given matrix.

presque 4 ans il y a

A résolu


Convert radians to degrees
Given input in radians, output to degrees

presque 4 ans il y a

Charger plus