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Solve all the problems in Cody5:Easy
Awarded to PurpleDiab on 30 Jul 2020
Matrix Patterns I Master
Awarded to PurpleDiab on 20 Feb 2018
Solve all the problems in Computation Geometry I
Awarded to PurpleDiab on 26 Dec 2017
Solve 500 problems
Awarded to PurpleDiab on 18 Jan 2017
Solve all the problems in Tiles Challenge
Awarded to PurpleDiab on 12 Dec 2016
Solve all the problems in Indexing I
Awarded to PurpleDiab on 08 Dec 2016
Solve all the problems in Indexing II
Awarded to PurpleDiab on 29 Nov 2016
Solve all the problems in ASEE Challenge
Awarded to PurpleDiab on 25 Nov 2016
Solve all the problems in CUP Challenge
Awarded to PurpleDiab on 24 Nov 2016
Solve a problem for the first time
Awarded to PurpleDiab on 22 Nov 2016
Content Feed
Solved
Initialize a Natural Number matrix.
Given length of matrix initialize a matrix consisting of natural numbers from 1 to n: n = 10; x = [ 1 2 3 4 5 6 7 8 9 10]; ...
8 mesi ago
Solved
Remove All elements less than 5
Given an input vector x, remove all elements of x less than 5 . Example: Input x = [ 1 2 5 7 3 ] Output y is [ 5 7 ...
8 mesi ago
Solved
Pi Estimate 2
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation2.pdf>
8 mesi ago
Solved
Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>
8 mesi ago
Solved
Create the following sequence : 0 1 1 4 9 25 64 169 ...
The sequence 0, 1, 1, 4, 9, 25, 64, 169, ... represents the square of the sequence of Fibonacci numbers. Let n repres...
8 mesi ago
Solved
Bit calculation
Give me the count of numbers from 1 to n having their last two bits as 0. For example function y = ret_count(4) y = x...
8 mesi ago
Solved
Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...
8 mesi ago
Solved
How brilliant are you?
A Brilliant number is defined as a number with two prime factors, both of which have the same number of digits. Some examples: ...
9 mesi ago
Solved
Highest powers in factorials
This is the inverse of the problem <https://www.mathworks.com/matlabcentral/cody/problems/44747 Exponents in Factorials>. Inste...
9 mesi ago
Solved
Pseudo Square Root (Inspired by Project Euler 266)
Shamelessly copied from the Project Euler page for Problem 266: ------------- The divisors of 12 are: 1,2,3,4,6 and 12. T...
9 mesi ago
Solved
Don't be mean. Be nice!
For this problem, you will be given a range of single digits R, and a separate number K. You job is to calculate the mean of al...
9 mesi ago
Solved
Circular Primes (based on Project Euler, problem 35)
The number, 197, is called a circular prime because all rotations of the digits: 197, 971, and 719, are themselves prime. The...
9 mesi ago
Solved
Create numeric palindromes and their square roots
Given a number n (1<=n<=9), return a left justified numeric matrix p with all the palindromes of the form 1 to n and back to 1. ...
9 mesi ago
Solved
Strange Number Algorithms
Three integer numbers will be provided to you. Write a function to Step1: Multiply first number by 3. Step2: Add 6 with t...
9 mesi ago
Solved
is the number happy?
test is a given integer number is Happy of not? answer 1 if yes or 0 is no
9 mesi ago
Solved
Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...
9 mesi ago
Solved
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...
9 mesi ago
Solved
Can I make a right triangle ?
Input(a) - is vector with any amount of values. Interpreted as legths of sides. Output(b): * Is true if there are any 3 va...
9 mesi ago
Solved
Create matrix with Gray code
Output "g" should be a matrix of class double, with <http://en.wikipedia.org/wiki/Gray_code Gray reflected binary code>. Inpu...
9 mesi ago
Solved
Vector Magnitude Calculator
'a' is a vector that starts at the origin and ends at (x, y). Find ||a||. Hint: It is as simple as "ABC".
9 mesi ago
Solved
Divisible by 14
Write a function to determine if a number is divisible by 14. If a number is <http://www.mathworks.com/matlabcentral/cody/proble...
9 mesi ago
Solved
Divisible by 15
Write a function to determine if a number is divisible by 15. If a number is <http://www.mathworks.com/matlabcentral/cody/proble...
9 mesi ago
Solved
Sphenic number sequence
<http://oeis.org/A007304 Sphenic numbers> are positive integers that are products of three distinct prime numbers: 30, 42, 66, 7...
9 mesi ago
Solved
Long-digit Subtraction
Suppose you need to subtract a very large integer from another integer. <http://www.mathworks.com/matlabcentral/cody/problems/56...
9 mesi ago
Solved
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...
9 mesi ago
Solved
Pattern Sum
Write a function which receives two single digit positive integers, (k and m) as parameters and calculates the total sum as: k...
9 mesi ago
Solved
Simple Matrix
Make the following matrix without typing it in one by one. [1 2 3; 2 4 6; 4 8 12] x=[1 2 3].
11 mesi ago
Solved
Problem for beginners
M is a nxm matrix. Swap the fist and the second last column with eachother. X=[1 2 3;4 5 6;7 8 9] Y=[2 1 3;5 4 6;8 7 9]
11 mesi ago
