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peta to nano (x-ray)
for certain x-ray radiation, given frequency in petahertz, give wavelength in nanometer, must be accurate +/- 25%

11 Monate ago

Solved


Sum of first n terms of a harmonic progression
Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

11 Monate ago

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Clock Hand Angle 1
Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand

11 Monate ago

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Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...

11 Monate ago

Solved


GJam 2016 Rd1A: Rank and File (Large)
This Challenge is derived from <http://code.google.com/codejam/contest/4304486/dashboard#s=p1 GJam Rd1A 2016 Rank and File>. Thi...

11 Monate ago

Solved


GJam 2016 Rd1A: Rank and File (small)
This Challenge is derived from <http://code.google.com/codejam/contest/4304486/dashboard#s=p1 GJam Rd1A 2016 Rank and File>. Thi...

11 Monate ago

Solved


Project Euler 249: Prime Subset Sums
Inspired by Problem 249 of Project Euler. https://projecteuler.net/problem=249 Let S = {2, 3, 5, ...} be the set of prime nu...

11 Monate ago

Problem


Project Euler 249: Prime Subset Sums
Inspired by Problem 249 of Project Euler. <https://projecteuler.net/problem=249> Let S = {2, 3, 5, ...} be the set of prime ...

11 Monate ago | 0

Solved


Separate even from odd numbers in a vector - without loops
*Without using loops*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the...

11 Monate ago

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Create Vector containing following elements
Create Vector containing following elements A=[pi eps NaN inf -inf flintmax];

11 Monate ago

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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...

11 Monate ago

Solved


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...

11 Monate ago

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Bell Number calculator
Calculate a vector of Bell numbers for sets up to length n. Bell numbers are the maximum number of partitions of a set. See the ...

11 Monate ago

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Is this number Munchhausen Narcissistic?
In this problem, simply return 1 if a supplied number is Munchhausen narcissistic or 0 if not. Example 153 is narcissistic...

11 Monate ago

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OXO counting
Count the number of occurrences of "OXO" in rows, columns, diagonals and anti-diagonals. Example: >> board = ['OOX' ...

11 Monate ago

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Funny problems
Generate the following vector: if n=1 then q=1; elseif n=2 then q=[2 2 1]; elseif n=3 then q=[3 3 3 2 2 1]; ... end

11 Monate ago

Solved


Twins in a Window
<http://en.wikipedia.org/wiki/Twin_primes Twin primes> are prime numbers that differ by 2, such as [11,13] or [41,43]. Write a f...

11 Monate ago

Solved


5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

11 Monate ago

Solved


Kaprekar numbers
Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

11 Monate ago

Solved


Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

11 Monate ago

Solved


Adding and Subtracting UINT variables
Given UINT class variables output the correct solution to A-B+C. *Input:* A,B,C Three uint variables *Output:* solution ...

11 Monate ago

Solved


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

11 Monate ago

Solved


R2012b atan in Degrees
Return in degrees the atan result of inputs for all four quadrants. *Examples:* [x, y] Degrees 1 0 0 1 1 ...

11 Monate ago

Solved


Create formatted value string Cell array of a vector
This Challenge is to create a cell array that contains strings of vector components in a given format. c=vector2formattedstri...

11 Monate ago

Solved


Substring Extraction
In a given string, find the substring between Start_string and End_string. You will have to include or exclude the Start_str...

11 Monate ago

Solved


Sum the rows
Sum the rows of the given matrix. Example x = [ 1 2 3 4 ] y = [ 3 7 ]

11 Monate ago

Solved


Sum all integers from 1 to 2^x
Given a number x, your function must return the summation of all integers from 1 to 2^x.

11 Monate ago

Solved


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...

11 Monate ago

Solved


Spiral Matrix
for a given integer n>=3, generate a matrix of nxn such that the value n^2 is at bottom left and its decreasing towards center ...

11 Monate ago

Solved


Solving a quadratic equation
Given a, b ​​and c, Return the solution of the following quadratic equation: a*x^2 + b*x + c = 0.

11 Monate ago

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