problem with database

[10metreh]

Originally Posted by kar_bon

BTW:
what about delete those posts here, where the errors are corrected!?

This thread is basically a log of what has gone on and what has been corrected. It is not a list of all the sequences with errors in them. For this reason, I will keep all the posts here.

[Andi47]

Originally Posted by Andi47

Seems the database needs a "check integrity of sequence" button.

Does the database attempt to check the correctness of sumbitted factors (especially if a lot of factors are submitted at once) at all? Perhaps there is a bug in the checking routine?

Addition to the suggestion: Maybe the button should send a mail to Syd if indeed an error is found.

[Greebley]

I am getting the following error:

Fatal error: Call to a member function factorid() on a non-object in /var/www/sequence.php on line 111

for these sequences:
300024
552390
702834
836580
92160

[Greebley]

I was looking at finding more errors with the database in some kind of automated manner and encountered a difficulty:

If I get a sequence in text format, the left hand side can be written in a different format than just as a number. It can appear as 8! or 101^2 instead of 40320 or 10201. Unfortunately, that appears as an error, meaning the sequences will have lots of errors. I was checking a list that end in prime numbers and got about 20% with errors, many of which are probably of this form.

I would like to see one of the following happen to help with error checking:
1) aliqueit.exe handles ^,*,+,-, and ! on the left hand side of the equation when checking indexes.
2) Database has a method to choose to print out the full number expanded out and not use those symbols on the left hand side of the equals.

Without this, I can find some errors but not subtle ones for a large set of sequences.

[Greebley]

A third possibility would be to write a program to fix up the elf files. I might be able to do that in the interim. Not sure how hard it would be.

[mklasson]

Originally Posted by Greebley

A third possibility would be to write a program to fix up the elf files. I might be able to do that in the interim. Not sure how hard it would be.

Yeah, I won't be adding the expression parsing to aliqueit at least. Seems like too much work for something very random that shouldn't be needed in the first place.

[henryzz]

Originally Posted by mklasson

Yeah, I won't be adding the expression parsing to aliqueit at least. Seems like too much work for something very random that shouldn't be needed in the first place.

there are several expression parsers dotted around the forum that you could pinch
that would remove a lot of the work

[jrk]

This error is in sequence 198024:

Id 28890768 not found
Warning: Invalid argument supplied for foreach() in /var/www/search.php on line 545

[Greebley]

For 715776 the value for index 534 is incorrect.

Should be:

 533 .  8113286024282394810908 = 2^2 * 29 * 30441079 * 2297622922597
 534 .  6574559847011905615492 = 2^2 * 11239 * 146244324384106807

[gd_barnes]

I'll just list this here. I assume that Syd will eventually look at everything in this thread for corrections.

217362 has the dreaded squared bug.

[Andi_HB]

Sorry for my stupid question - but how can i upload my alq_250410.elf to Syds Database? How looks the correct command line?
I have wget in the directory.
I have tried aliqueit -s 250410 but it don`t work.