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1) Message boards : Problems and Help : Bios update = no video out (Message 125115)
Posted 402 days ago by Paul Underwood
Rather than pulling out the battery, leave it in and locate and short the clear cmos jumpers for a minute.

2) Message boards : 321 Prime Search : milestone (Message 122527)
Posted 469 days ago by Paul Underwood
PrimeGrid has surpassed 14.5 million bits -- double checked for + and -.

Hoping for a new prime soon!
3) Message boards : Number crunching : Best FREE version of Linux (Message 121218)
Posted 496 days ago by Paul Underwood
ah yes and the rediscovery of super user (su) :)


"su" is switch user. It defaults to root without arguments,
but you can use it to login as any user.
If you use it as root you do not need to provide a password.

Welcome back to Linux.


Thanks. Alwasy good to be back and see what's going on.

ic, makes sense su would mean that. Thanks for the information. Its not quite like riding a bike, but it's quite fun to relearn this.

sudo I had to use to install the boinc-client and boinc-manager programs. Without me googling, what does sudo stand for?


"switch user and do" i.e, execute a command as another user,
which is used in the same way as "su".

There is is also a file /etc/sudoers which controls sudo permissions.
For example: root privileges can be granted to a trusted user.

ps. You could use "man sudo" instead of googling,
4) Message boards : Number crunching : Best FREE version of Linux (Message 121180)
Posted 497 days ago by Paul Underwood
ah yes and the rediscovery of super user (su) :)


"su" is switch user. It defaults to root without arguments,
but you can use it to login as any user.
If you use it as root you do not need to provide a password.

Welcome back to Linux.
5) Message boards : AP26 - AP27 Search : Are AP's also prime finders? (Message 117646)
Posted 667 days ago by Paul Underwood
What I mean is...

Is an AP just a group of already known primes that are 'discovered' to be an AP or are they one or two (or more) primes with an AP, the AP is continued forwards and backwards to see if other numbers in the AP are prime or not, thereby 'discovering' new primes as the continuation of the sequence?

Dad


Dr David Broadhurst used the top5000 primes to look for AP3s.

In my searches for mid-sized APs, I sieve a range, then PRP it, after detect APs in the range and finally extend APs found in the range.
6) Message boards : 321 Prime Search : milestone (Message 117503)
Posted 673 days ago by Paul Underwood
PrimeGrid has now double checked + and - for 321 for n less than 14M bits. Congrats and good luck finding the next 321 prime.
7) Message boards : Number crunching : Year of the Dog Challenge (Message 116295)
Posted 707 days ago by Paul Underwood


And so, of course, now we've also found a 5.1 million digit Woodall prime during the 321 challenge. The last time a Woodall was discovered was over 10 years ago in 2007.

So very fickle!


Congrats PG and especially the finder!
8) Message boards : 321 Prime Search : Next Prime (Message 116149)
Posted 710 days ago by Paul Underwood
-99.70% 1.22428235452968 14059680.5965012 -95.00% 1.26290528305169 14503227.0028607 -68.00% 1.30152821157371 14946773.4092203 average 1.3401511 15390319.8155799 68.00% 1.37877406861775 15833866.2219395 95.00% 1.41739699713977 16277412.628299 99.70% 1.45601992566179 16720959.0346586


Is my calculation for next 3*2^n-1 prime.

Today the Year of the Dog challenge passed the 14M bit mark.

There is also a 3*2^n+1 prime out there somewhere.
9) Message boards : Number crunching : Year of the Dog Challenge (Message 116147)
Posted 710 days ago by Paul Underwood
The leading edge has passed 14M bits already and the challenge is not over.
10) Message boards : Number crunching : Year of the Dog Challenge (Message 116065)
Posted 713 days ago by Paul Underwood
PG should easily push through the 14 mega bit barrier before the week is out.

Good luck every one in discovering a new 321 prime!


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