William Lanchantin
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Solved
Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...
6 years ago
Solved
Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...
6 years ago
Solved
Group-wise Euclidean distance
*Input*: * *x* —— An array of size *n-by-d*, where each row vector denotes a point in a d-dimensional space; * *g* —— A gro...
6 years ago
Solved
Digit concentration in Champernowne's constant
Consider the first 50 digits of Champernowne's constant 0.12345678910111213141516171819202122232425262728293... The...
6 years ago
Solved
Acid and water
Assume that there is a 100 liter tank. It is initially filled with just distilled water. It is continuously drained at R...
6 years ago
Solved
Sums of Distinct Powers
You will be given three numbers: base, nstart, and nend. Write a MATLAB script that will compute the sum of a sequence of both ...
6 years ago
Solved
Number of Even Elements in Fibonacci Sequence
Find how many even fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...
6 years ago
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The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...
6 years ago
Solved
Van Eck's Sequence's nth member
Return the Van Eck's Sequence's nth member. For detailed info : <http://oeis.org/A181391 OEIS link> and <https://www.theguard...
6 years ago
Solved
Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...
6 years ago
Solved
Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer whi...
6 years ago
Solved
Energy of a photon
Given the frequency F of a photon in giga hertz. Find energy E of this photon in giga electron volts. Assume h, Planck's ...
6 years ago
Solved
How to subtract?
* Imagine you need to subtract one number from another using MATLAB. * You will not be using eval for this task. * Given two A...
6 years ago
Solved
Return the length of the longest word in the string.
Example: Input s='A fractal is a natural phenomenon or a mathematical set that exhibits a repeating pattern that display...
7 years ago
Solved
0, 2, 0, -2, 0, 2, 0, -2, ...
Generate the first n terms of a periodic sequence defined as f(x) = 0, 2, 0, -2, 0, 2, 0, -2, ..., for x = 1, 2, 3, 4, 5, 6...
7 years ago
Solved
make an eye matrix which element is 1:n
for a given input n, make an n by n matrix which contains elements 1:n for example input =5 output = [1 0 0 0 0;0 2 0 0 0; 0...
7 years ago
Solved
find a number (cheat)
find a number input^5 = input the out put should be the number. try cheating
7 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.
7 years ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
7 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...
7 years ago
Solved
COUNT VOWEL 2
The objective of this problem is to determine the number of unique vowels used in the given string. Now count vowels in STRI...
7 years ago
Solved
Count number of words in string
Count number of words in string Examples 'hi', answer is 1 'hi hi', answer is 2 'I enjoy cody', answer is 3
7 years ago