## Search found 110 matches

- Sat Jul 13, 2019 9:56 am
- Forum: Discrete Mathematics
- Topic: The Satisfiability Problem... NP or P?!
- Replies:
**4** - Views:
**1507**

### Re: The Satisfiability Problem... NP or P?!

https://medium.com/swlh/the-boolean-satisfiability-problem-solved-48ceb5550115 Now reads -- The Boolean Satisfiability Problem vilely censured. "Apologies: someone hacked the article to avoid sharing this technology." I guess that "someone" is me because I privately asked the author a couple of que...

- Sun Jun 30, 2019 12:00 am
- Forum: Discrete Mathematics
- Topic: The Satisfiability Problem... NP or P?!
- Replies:
**4** - Views:
**1507**

### Re: The Satisfiability Problem... NP or P?!

*A typo in Dato's Theorem One; supposed to read --*

and... Only a Tautology with respect to x and y, a sample of

Dato's different approach to Logic...

**(not x | x and y | z1) · (x and y | not y | z2) · (z1 | z2 | x <-> y) = 1**and... Only a Tautology with respect to x and y, a sample of

Dato's different approach to Logic...

- Thu Jun 27, 2019 6:44 pm
- Forum: Discrete Mathematics
- Topic: The Satisfiability Problem... NP or P?!
- Replies:
**4** - Views:
**1507**

### Re: The Satisfiability Problem... NP or P?!

Thanks! jaap ... What would I do without jaap 's astute "Reply"s? And Thanks for posting the link; the least I could/should have done... I think English is a second language for Dato and, mistranslations aside, I am still interested in trying to code his algorithm: a) to see if I even understand it...

- Thu Jun 27, 2019 7:45 am
- Forum: Discrete Mathematics
- Topic: The Satisfiability Problem... NP or P?!
- Replies:
**4** - Views:
**1507**

### The Satisfiability Problem... NP or P?!

*Found a June article via "Medium" titled*

Juan Manuel Dato (Ruiz?) and trying to work through it to...

Confirm what would be... Ramanujanesque...

Anyone know of any pros or cons??

Anyone know how to...

Contact Dato?!

**The Boolean Satisfiability Problem, solved?**byJuan Manuel Dato (Ruiz?) and trying to work through it to...

Confirm what would be... Ramanujanesque...

Anyone know of any pros or cons??

Anyone know how to...

Contact Dato?!

- Wed Jun 19, 2019 8:12 am
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 101
- Replies:
**7** - Views:
**4638**

### Re: Problem 101

*Help received from*

Mission Accomplished and

reported on PE.net;

Thankyou...

**dawghaus4**andMission Accomplished and

reported on PE.net;

Thankyou...

- Fri Jun 14, 2019 4:45 pm
- Forum: News, Suggestions, and FAQ
- Topic: Errors/Warnings/Bugs
- Replies:
**497** - Views:
**94349**

### Re: Errors/Warnings/Bugs

*For what it's worth --*

Picture not missing for me, on

Google Chrome...

Picture not missing for me, on

Google Chrome...

- Wed Jun 12, 2019 9:22 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 101
- Replies:
**7** - Views:
**4638**

### Re: Problem 101

kenbrooker wrote: ↑Thu Mar 29, 2018 10:15 pmAsked for "HELP!" @ PE.net top of Page 9 for Problem 101, as glasshopper,

If anyone would care to reply there or, via PM, here @ PE.chat?

Thanks in advance...

- Wed Jun 12, 2019 7:45 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 622
- Replies:
**6** - Views:
**3904**

- Mon May 27, 2019 10:53 pm
- Forum: News, Suggestions, and FAQ
- Topic: Quantum Computing
- Replies:
**0** - Views:
**4720**

### Quantum Computing

"Free for a limited time only," there is an IMHO excellent, highly interactive introduction to Quantum Computing from Brilliant Math & Science at: https://brilliant.org/ Click on "COURSES" first... EDIT: Just discovered that only the first 13 of 33 lessons are free, however, I think that leaves one...

- Mon Apr 22, 2019 4:59 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Clarification on Project Euler Problems...
- Replies:
**2** - Views:
**1011**

### Re: Clarification on Project Euler Problems...

**ThankYouSIR!**- Mon Apr 22, 2019 2:27 am
- Forum: Clarifications on Project Euler Problems
- Topic: Clarification on Project Euler Problems...
- Replies:
**2** - Views:
**1011**

### Clarification on Project Euler Problems...

*ok... I give up... Why are so many Project Euler problem solutions*

qualified as mod (10^9 + 7 [or + 9])??

qualified as mod (10^9 + 7 [or + 9])??

- Wed Mar 06, 2019 8:35 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 008
- Replies:
**96** - Views:
**18200**

### Re: Problem 008

*I am just as "guilty" by finding*

**jaap**'s post last instead of in the first place...- Wed Feb 27, 2019 6:39 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 008
- Replies:
**96** - Views:
**18200**

### Re: Problem 008

Thanks sjhillier and I agree with your feeling that the wording is not necessarily misleading if one keeps in mind that the problem refers to a "number" , not to a two-dimensional array... Or, as jaap posted, 4 years ago, to the nearest day -- Re: Problem 008 Post by jaap » Thu Feb 26, 2015 4:08 am...

- Tue Feb 26, 2019 11:48 pm
- Forum: Clarifications on Project Euler Problems
- Topic: Problem 008
- Replies:
**96** - Views:
**18200**

### Re: Problem 008

Absotively , although, without checking, 9989 may also appear elsewhere (or even 9999) "adjacently," only because the 1000-digit number is not presented as a number , "consecutively" and "contiguously(?)"... IOWords, IMHOpinion, your rewording is... Superior Freiling :) I guess an Administrator may...

- Wed Jan 30, 2019 8:59 pm
- Forum: Programming languages
- Topic: Learning HTML & CSS...
- Replies:
**0** - Views:
**4744**

### Learning HTML & CSS...

*If interested, Geeks4Geeks today announced a free, online tutorial, in a one-week format,*

by which to learn

https://www.geeksforgeeks.org/introduct ... st-1-week/

by which to learn

**HTML**and**CSS**at:https://www.geeksforgeeks.org/introduct ... st-1-week/

- Mon Jan 28, 2019 7:22 am
- Forum: Recreational
- Topic: Suggest me a book
- Replies:
**13** - Views:
**8876**

### Re: Suggest me a book

*So happy to see my name disappear as "LAST POST"er on several topics...*

Otherwise I look like a... Conversation Killer...

Otherwise I look like a... Conversation Killer...

- Thu Jan 24, 2019 4:28 am
- Forum: News, Suggestions, and FAQ
- Topic: Weird runtime behavior
- Replies:
**8** - Views:
**1776**

### Re: Weird runtime behavior

Final (Anti-Climactic) Report: The "Original" and "Improved" codes find the 10 millionth prime number (179,424,673) in 3,929 and 3,928 seconds, respectively; so, at least the "All New and Improved" code is not slower(!!) but, it's not exactly "Improved" either; and, still being surprised only shows...

- Wed Jan 23, 2019 8:27 pm
- Forum: Recreational
- Topic: Suggest me a book
- Replies:
**13** - Views:
**8876**

### Re: Suggest me a book

Thanks elissasmart , and Great books on the... Limits of Math: Godel's Proof by Ernest Nagel and James Newman with a new Foreword by Douglas Hofstadter 2001 :D :D :D :D :D A World Without Time - The Forgotten Legacy of Godel and Einstein by Palle Yourgrau 2005 :D :D :D :D When Einstein Walked with G...

- Wed Jan 23, 2019 7:11 am
- Forum: News, Suggestions, and FAQ
- Topic: Weird runtime behavior
- Replies:
**8** - Views:
**1776**

### Re: Weird runtime behavior

Thanks! rayfil ... "Assuming" I understand you right: 1) In the "Original" algorithm I was disregarding further processing of all even numbers, but only at the expense of first executing "else if(i % 2 == 0) return false;" for every even number, which, though relatively quick, I'm sure (You are way...

- Tue Jan 22, 2019 6:13 pm
- Forum: News, Suggestions, and FAQ
- Topic: Weird runtime behavior
- Replies:
**8** - Views:
**1776**

### Re: Weird runtime behavior

*Thanks*

I agree the discrepancies are small but they are still in the Dead Wrong Direction to my way of thinking...

As you suggest I will try longer runtimes, possibly requiring BigInteger...

**LilStalker**...I agree the discrepancies are small but they are still in the Dead Wrong Direction to my way of thinking...

As you suggest I will try longer runtimes, possibly requiring BigInteger...