Project Euler in R: Problem 4
Problem 4: Find the largest palindrome made from the product of two 3-digit numbers. Commentary: Believe it or not, I don't have much to say about this problem. There are cuter, more general ways to...
View ArticleProject Euler in R: Problem 5
Problem: What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20? Commentary: This problem again isn't very difficult. Basically we just exploit the existence...
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Project Euler in R: Problem 6
Problem: Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum. Commentary: I taught a variety of freshman math courses at my university...
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Project Euler in R: Problem 7
Problem: What is the 10001st prime number? Commentary: So it's finally time to discuss my prime-searching algorithm, as promised back in Problem 5. We will find primes in the following way: 2 and 3 are...
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Project Euler in R: Problem 8
Problem: Find the greatest product of five consecutive digits in the 1000-digit number. Commentary: So this solution is probably a little non-standard. I've actually got a huge blog post coming up...
View ArticleProject Euler in R: Problem 9
Problem: There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product abc. Commentary: I'm not proud of this solution. Every time I would look at this solution, I just knew...
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Project Euler in R: Problem 10
Problem: Find the sum of all the primes below two million. Commentary: If you're not careful, this problem can really get you in R. In poking around the internet, there are a few solutions to this...
View ArticleProject Euler in R: Problem 11
Problem: What is the greatest product of four adjacent numbers in any direction (up, down, left, right, or diagonally) in the 20×20 grid? Commentary: Well, it's been a while since I've posted...
View ArticleProject Euler...in LaTeX?
I've been joking for a while now that I was going to start solving project euler problems in LaTeX. Then today I finally did one. So let's talk about solving Project Euler problem number 1 (the easy...
View ArticleProject Euler in LaTeX: Problem 2
I probably won't do any more of these, and I hadn't really planned on even doing this one, but I've been inspired. Apparently some Russians found my first post about doing Project Euler problems in...
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