All Questions
14 questions
6votes
4answers
2kviews
Find all ways to express each of a list of even numbers as the sum of 2 positive, even numbers
This code was a challenge from a friend. Essentially she wanted a way to "Divide an even number into 2 even numbers." So I made this quick and dirty Python program to find the solutions up ...
1vote
1answer
440views
Finding Mersenne primes
An attempt to find Mersenne primes using the Lucas-Lehmer primality test: ...
- 21
1vote
2answers
418views
Monte-Carlo method to check triangle inequality
This is code for finding if inequality \$abc > 2(\text{area of triangle})\$ where \$a\$, \$b\$ and \$c\$ are the sides of any triangle. The below, and repl, code work as intended. However they ...
- 21
4votes
1answer
549views
Solving a linear system with two variables
Background: Equation 1: 2x-y=6 Equation 2: 4x+3y=22 Because 1 is ax-by=c and 2 is dx-ey=f y=(a * f - c * d) / (a * e - b * d) and x is simply (c - (b * y)) / a) What I am trying to do: ...
- 41
5votes
2answers
1kviews
Magic Square with Five Methods (Python)
Problem Write a program to return a boolean if an input grid is magic square. A magic square of order \$N\$ is an arrangement of \$N^2\$ distinct integers in a square such that the \$N\$ numbers in ...
- 3,592
1vote
1answer
169views
Project Euler problem 12 Python
I'm new to python and programming in general and I found Project Euler problems a good way to practice python. But my code is pretty slow. It seems to work, didn't wait long enough for the code to ...
- 97
5votes
2answers
512views
Find numbers that are palindromic in consecutive number bases
I want to generate numbers which are palindromic in three or more consecutive number bases in the most optimal, fastest way (up to some range). I do not count trivial one digit palindromes. (...
- 258
3votes
2answers
73views
Multithreaded search for solutions to an inequality
This question is related to my previous question on the brute-force search for a solution to an unsolved mathematical inequality: $$3^{k}-2^{k}\left\lfloor \left({\tfrac {3}{2}}\right)^{k}\right\...
- 3,800
7votes
2answers
148views
Finding product palindromes
I am new to perl and want some help in tuning this script if possible cause it takes time if I increased my array. also if I use warnings I get a lot of warnings ...
36votes
9answers
7kviews
Solving the Lazy Hobo Riddle
I would like help in optimizing this calculation, which is from the Lazy Hobo Riddle: There once were 4 hoboes travelling across the country. During their journey, they ran short on funds, so ...
user54410
7votes
4answers
15kviews
Finding the Pythagorean triplet that sums to 1000
Project Euler problem 9 says: A Pythagorean triplet is a set of three natural numbers, a < b < c, for which, a2 + b2 = c2 For example, 32 + 42 = 9 + 16 = 25 = 52. There exists ...
- 217
7votes
3answers
12kviews
Determining common divisors of two numbers
Is there a better algorithm for finding the common divisors of two numbers? Can this code be shortened? ...
- 377
6votes
2answers
1kviews
Simple mathematical console application
I am new to C++ and with my basic knowledge of the language, I have attempted to create a simple console application filled with lots of useful functions involving math related stuff. The following ...
- 183
10votes
5answers
14kviews
Polynomial program
The program basically takes a polynomial and does some simple calculations with it. With a couple of hours of work I managed to get my first console application to work (aside from the obligatory "...
- 153
