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PurpleDiab


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Last seen: 2 months ago Active since 2016

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  • Cody5 Easy Master
  • Matrix Patterns I Master
  • Computational Geometry I Master
  • Scholar
  • Tiles Challenge Master
  • Indexing I Master
  • Indexing II Master
  • ASEE Challenge Master
  • CUP Challenge Master
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Solved


Calculate compression ratio of engine
Calculate compression ratio of engine given compression volume of cylinder(Vc), piston stroke(s) and valve diameter(d)

8 months ago

Solved


Convert a vector of Integers into a matrix of binaries
Convert a vector of positive integers into a matrix containing their binary representation. Each column of the output contains t...

8 months ago

Solved


Find offset of an element of a multi dimensional matrix
For a given multi dimensional matrix and given element, find its offset from the 1st element. Return 0, if element is not fo...

8 months ago

Solved


Find Logic 9

11 months ago

Solved


Find Logic 3

11 months ago

Solved


Find Logic 13

11 months ago

Solved


Find Logic 16

11 months ago

Solved


Find Logic 1

11 months ago

Solved


Summation of integers

11 months ago

Solved


Output the sum of all the odd integers
Example: x = [ 1 2 3 4 5 6 7 8 9 ] y = 25

12 months ago

Solved


Parallel vectors
Return true or false depending on whether 2 vectors are parallel or not. Vectors can be 2 or 3 dimensional. The origin is not c...

12 months ago

Solved


Set a Soroban Abacus
*Description* This problem is the inverse of <http://www.mathworks.com/matlabcentral/cody/problems/136-read-a-soroban-abacus ...

12 months ago

Solved


imaginary results
Return the value of the imaginary number i to the power of input argument n.

12 months ago

Solved


What's the missing interior angle?
I'm talking about polygons... The sum of the interior angles of a triangle is 180 degrees. The sum of the interior angles of a...

12 months ago

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]; ...

1 year 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 ...

1 year ago

Solved


Spherical Volume
Calculate the volume of a sphere.

1 year ago

Solved


Pi Estimate 2
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation2.pdf>

1 year ago

Solved


Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

1 year 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...

1 year 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...

1 year ago

Solved


Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...

1 year 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: ...

1 year 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...

1 year 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...

1 year 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...

1 year 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...

1 year 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. ...

1 year 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...

1 year ago

Solved


is the number happy?
test is a given integer number is Happy of not? answer 1 if yes or 0 is no

1 year ago

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