Search found 10 matches

by stimmer
Sun Nov 02, 2014 7:25 pm
Forum: Number Theory
Topic: About Polya's conjecture.
Replies: 2
Views: 6850

Re: About Polya's conjecture.

Isn't the summatory Liouville function just the sum of the Mertens function at [n/(d^2)] for 1<= (d^2)<=n ? There's a way of calculating the Mertens function in O(n^(2/3+e)) (by Lehman, the same Lehman named on the page you linked to.) And on PE there are dozens of questions on the topic of 'sum the...
by stimmer
Sun Nov 24, 2013 4:26 am
Forum: News, Suggestions, and FAQ
Topic: Errors/Warnings/Bugs
Replies: 539
Views: 129304

Re: Errors/Warnings/Bugs

I'm having the same trouble as erickj00001 but with the latest problem. (Tried another computer too, but login / logout isn't working quite right either)
by stimmer
Sun Nov 03, 2013 10:20 pm
Forum: Number
Topic: Average of Solutions to an Equation
Replies: 4
Views: 2499

Re: Average of Solutions to an Equation

150, because if (t1, t2,⋯,t24) is a solution then (1-t1, 2-t2, ⋯,24-t24) is too.
by stimmer
Fri Nov 16, 2012 8:58 pm
Forum: News, Suggestions, and FAQ
Topic: Show problem statistics on problem description page.
Replies: 9
Views: 4062

Re: Show problem statistics on problem description page.

Also, once you're on a particular problem page you can hover the mouse over "Problem XXX" to display a tooltip with the number of members having solved that problem. I wanted to ask if you could possibly disable the mouseover feature for the most recent problem each week. The reason is that I somet...
by stimmer
Fri Nov 16, 2012 8:25 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 397
Replies: 8
Views: 3342

Re: Problem 397

Be assured that there really are just 41 triangles with a 45-degree angle for k=1. Without giving anything away, the next step is to use common sense - look at the list of triangle coordinates your code made, do some of them feel like they wouldn't have a 45 degree angle? Try sketcking some on graph...
by stimmer
Fri Nov 02, 2012 6:38 pm
Forum: Clarifications on Project Euler Problems
Topic: Problem 127
Replies: 36
Views: 12245

Re: Problem 127

1 has no prime factors, therefore the product of all distinct prime factors of 1 is the empty product, which by definition is equal to 1.
by stimmer
Fri Mar 23, 2012 6:26 pm
Forum: News, Suggestions, and FAQ
Topic: To those who achieved 100%
Replies: 28
Views: 13647

Re: To those who achieved 100%

I just got to 100% after solving 331 . I'd deliberately left it until last as it was the most recent problem when I began a year ago. I started on PE to help with learning Python and Sage (I was already fluent in C), and only meant to solve enough problems to learn the syntax. Instead I got addicted...
by stimmer
Tue Mar 20, 2012 2:06 am
Forum: Clarifications on Project Euler Problems
Topic: Problem 376
Replies: 21
Views: 6026

Re: problem 376 clarification

The sets of dice {A,B,C}, {B,C,A} and {C,A,B} are the same set. Does {A,C,B} = {A,B,C}? i.e. Are all permutations of a set considered the same or is it just rotations of a specific permutation? It should be pretty obvious that the answer to that question is quite irrelevant. I thought the same at f...
by stimmer
Sat Mar 10, 2012 2:30 am
Forum: Recreational
Topic: Logic Problem
Replies: 5
Views: 6734

Re: Logic Problem

The lady can't have black hair, since a professor with black hair answers the lady. Since the lady does not have brown hair, she must have white hair. Therefore she is not Prof White, and Prof Black is male, so she is Prof Brown. So Prof Black's hair must be brown.
by stimmer
Thu Feb 02, 2012 4:26 am
Forum: Recreational
Topic: Missing Wedding Ring Finger
Replies: 18
Views: 13536

Re: Missing Wedding Ring Finger

My best guess: (admittedly I saw 30 years and ring ringer and tried to make everything else fit around...) The 'woman' is a mare. Horses don't have ring fingers - a horses' hoof is the middle digit. The fourth (and second) digit of the forelegs have mostly evolved away. I don't know who the man is (...