Go Back > Prime Search Projects > Riesel Prime Search

Thread Tools
Old 2020-01-27, 02:06   #23
CRGreathouse's Avatar
Aug 2006

2·2,903 Posts

Originally Posted by storm5510 View Post
This must be an expression calculator. I found a few online but none could return a value of any size.
PARI/GP is a programmable calculator. Its official website is
and we have a subforum here devoted to it (a good place to ask questions). You can use it online but it's designed to run on your computer in Windows, Mac, Linux, etc.
CRGreathouse is offline   Reply With Quote
Old 2020-01-28, 13:55   #24
Dr Sardonicus
Dr Sardonicus's Avatar
Feb 2017

2·3·463 Posts

Originally Posted by VBCurtis View Post
Using 2 + floor is equivalent to using 1 + ceiling, no?
No. If N = integer, then floor(N) = ceiling(N) = N.
Dr Sardonicus is offline   Reply With Quote
Old 2020-01-28, 15:43   #25
VBCurtis's Avatar
Feb 2005
Riverside, CA

2×37×53 Posts

Originally Posted by Dr Sardonicus View Post
No. If N = integer, then floor(N) = ceiling(N) = N.
Thanks- but in the case that was being discussed, I didn't think it was possible for N to be an integer.
VBCurtis is offline   Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Patterns in primes that are primitive roots / Gaps in full-reptend primes mart_r Prime Gap Searches 9 2020-01-19 22:20
A question about primes of a particular form enzocreti enzocreti 55 2019-04-27 11:10
Fascinating Lenovo memory configuration paper tServo Hardware 7 2018-11-17 16:28
Fascinating periodic sequence pairs doctornash Other Mathematical Topics 7 2018-07-14 00:06
question about a chain of primes firejuggler Math 31 2014-01-08 18:28

All times are UTC. The time now is 22:51.

Fri Feb 21 22:51:54 UTC 2020 up 21 days, 17:23, 1 user, load averages: 2.10, 2.50, 2.49

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.