Re: Please test pari-2.17.4 prerelease 1

[hermann@stamm-wilbrandt.de]

On 2026-06-22 14:07, Bill Allombert wrote:
> Dear PARI developers,
>
> We have made available a prerelease of PARI 2.17.4 (stable).
Hi,

I did not respond to your previous email wrt experimental "=" feature 
that I really like. Any chance that it will make it into 2.17.4?

? version
%2 = [2, 17, 4]
? [[b,a]|b<-[1..10];a<-[b!+1],issquare(b)]
%3 = [[1, 2], [4, 25], [9, 362881]]
? [[b,a]|b<-[1..10];a=b!+1,issquare(b)]
  ***   syntax error, unexpected '=', expecting '<' or '[' or ':': 
[[b,a]|b<-[1..10];a
  ***   =b!+1,issquare(b)]
  ***   ^------------------
?


It will take years before such feature can be used on oeis.org.

Reason is that they test with default distributions of PAR/GP that are 
backlevel.

One example where I was not allowed to use primorial operator for that 
reason was:
https://oeis.org/A391020

But that means that new features that are useful (like primorial, and 
now assignment) need to be shipped better earlier than later, so that 
eventually they will be usable on oeis.org ...


Regards,

Hermann.