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Doug Edmunds
,
C. G.
2
8:56 AM
Picat code formatter
Hi, nice that you did this. I tested it on my particularly unusual advent of code Picat source code
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Picat code formatter
Hi, nice that you did this. I tested it on my particularly unusual advent of code Picat source code
8:56 AM
Neng-Fa Zhou
, …
C. G.
12
Dec 11
Advent of Code 2025
Here is my solution to the day-11 part-2 problem: https://github.com/nfzhou/aoc/blob/main/
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Advent of Code 2025
Here is my solution to the day-11 part-2 problem: https://github.com/nfzhou/aoc/blob/main/
Dec 11
Peter Bernschneider
Dec 11
Advent of Code Day 11
Tabling makes solution of Advent of Code Day 11 easy! Peter
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Advent of Code Day 11
Tabling makes solution of Advent of Code Day 11 easy! Peter
Dec 11
Hakan Kjellerstrand
2
Dec 1
Picat used in paper in High Energy Physics and Symbolic Regression
And now the paper has been accepted and published in the Particles journal: https://www.mdpi.com/2571
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Picat used in paper in High Energy Physics and Symbolic Regression
And now the paper has been accepted and published in the Particles journal: https://www.mdpi.com/2571
Dec 1
Hakan Kjellerstrand
,
C. G.
4
Dec 1
Picat PPL - Probabilistic Programming Light
Hi, Cristian. Here's is a simple model showing two different approaches for getting the two
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Picat PPL - Probabilistic Programming Light
Hi, Cristian. Here's is a simple model showing two different approaches for getting the two
Dec 1
Neng-Fa Zhou
, …
Peter Ludemann
12
Nov 26
mmin and mmax table modes
Hi Halkan: If you're using the 8-bit API, I presume you're also using the PCRE2_UTF flag? (
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mmin and mmax table modes
Hi Halkan: If you're using the 8-bit API, I presume you're also using the PCRE2_UTF flag? (
Nov 26
jf
, …
Neng-Fa Zhou
5
Oct 30
problems with scc_grid repeated calls
Thank you very much for your example, now my solution for fillomino (https://www.janko.at/Raetsel/
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problems with scc_grid repeated calls
Thank you very much for your example, now my solution for fillomino (https://www.janko.at/Raetsel/
Oct 30
Kenneth Brown
Oct 29
Integer exponentiation bug with exponent 0
Hi, I've discovered a bug with integer exponentiation. When the base A is a bigint, A**0 is
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Integer exponentiation bug with exponent 0
Hi, I've discovered a bug with integer exponentiation. When the base A is a bigint, A**0 is
Oct 29
David Silverman
,
Neng-Fa Zhou
3
Oct 9
Question on Path Constraint
This is incredibly helpful! I see how you added the required vertex of 0 into the Vs list. I had
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Question on Path Constraint
This is incredibly helpful! I see how you added the required vertex of 0 into the Vs list. I had
Oct 9
Neng-Fa Zhou
, …
Hakan Kjellerstrand
5
Sep 30
Copilot Speaks Picat
Hi Hakan, The syntax extensions will be available in the next major version, 4.0, together with a
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Copilot Speaks Picat
Hi Hakan, The syntax extensions will be available in the next major version, 4.0, together with a
Sep 30
Peter Bernschneider
Sep 27
Re: Digest for picat-lang@googlegroups.com - 1 update in 1 topic
Neng Fa, I want to mention, that since a year or so I'm using VS Code with Copilot running and
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Re: Digest for picat-lang@googlegroups.com - 1 update in 1 topic
Neng Fa, I want to mention, that since a year or so I'm using VS Code with Copilot running and
Sep 27
Neng-Fa Zhou
, …
Claudio Cesar de Sá
4
Sep 23
Picat Solutions for the 2025 LPCP Programming Contest Problems
I should have mentioned a nice feature of Picat used in the solution for Problem-5: solve_all([$limit
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Picat Solutions for the 2025 LPCP Programming Contest Problems
I should have mentioned a nice feature of Picat used in the solution for Problem-5: solve_all([$limit
Sep 23
David Silverman
Sep 22
Planner Still Amazing
Advent of Code 2016 day 22. It's a modified version of the 15 slider puzzle. On the Reddit
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Planner Still Amazing
Advent of Code 2016 day 22. It's a modified version of the 15 slider puzzle. On the Reddit
Sep 22
David Silverman
,
Neng-Fa Zhou
2
Sep 16
BV for Advent of Code Problem
For this problem you don't need to use bv constraints, as the maximum integer allowed fits into a
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BV for Advent of Code Problem
For this problem you don't need to use bv constraints, as the maximum integer allowed fits into a
Sep 16
Hakan Kjellerstrand
Sep 10
Our second physics paper using Picat for symbolic regression and data analysis has been published
Our second physics paper (preprint) is now available at arXiv: SV Chekanov (, H. Kjellerstrand:
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Our second physics paper using Picat for symbolic regression and data analysis has been published
Our second physics paper (preprint) is now available at arXiv: SV Chekanov (, H. Kjellerstrand:
Sep 10
David Silverman
, …
Neng-Fa Zhou
11
Sep 9
What I Wish I Knew When Learning Picat
I have always been terrible at number theory, but I think there's something about the way the
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What I Wish I Knew When Learning Picat
I have always been terrible at number theory, but I think there's something about the way the
Sep 9
Nartoo Meon
, …
David Silverman
5
Sep 7
product except zero constraint
% X #= prod([cond(T #= 0, 1,T) : I in 1..Len, T #= A[I]**K]), X #= prod([max(1,T) : I in 1..Len, T #=
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product except zero constraint
% X #= prod([cond(T #= 0, 1,T) : I in 1..Len, T #= A[I]**K]), X #= prod([max(1,T) : I in 1..Len, T #=
Sep 7
Neng-Fa Zhou
Sep 3
See what Google's AI says about a resurgence of interest in logic programming
A resurgence of interest in logic programming for AI and optimization is underway, with languages
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See what Google's AI says about a resurgence of interest in logic programming
A resurgence of interest in logic programming for AI and optimization is underway, with languages
Sep 3
Neng-Fa Zhou
,
Hakan Kjellerstrand
2
Aug 23
Release of Picat Version 3.9
Here are some examples of how to use the bv module: * Section "4 Day 17: Chronospatial Computer
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Release of Picat Version 3.9
Here are some examples of how to use the bv module: * Section "4 Day 17: Chronospatial Computer
Aug 23
Daniel Leone
,
Neng-Fa Zhou
2
Aug 22
Planner branching with member/2 not explored?
All the predicates in the planner module, except best_plan_nondet, are deterministic, and cannot
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Planner branching with member/2 not explored?
All the predicates in the planner module, except best_plan_nondet, are deterministic, and cannot
Aug 22
Woosuk Kwak (Bubbler)
Jun 18
Some error output going to stdout
It looks like parts of some error messages are printed to stdout. I think they should all go to
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Some error output going to stdout
It looks like parts of some error messages are printed to stdout. I think they should all go to
Jun 18
Leszek Buczkowski
,
Neng-Fa Zhou
4
May 8
macOS issues
gcc --version Apple clang version 17.0.0 (clang-1700.0.13.3) Target: arm64-apple-darwin24.4.0 Thread
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macOS issues
gcc --version Apple clang version 17.0.0 (clang-1700.0.13.3) Target: arm64-apple-darwin24.4.0 Thread
May 8
jf
, …
Hakan Kjellerstrand
3
May 7
scc - minimize
Hi Josef. I'm not sure I understand what you want to do here. The Coords you are forcing to be
unread,
scc - minimize
Hi Josef. I'm not sure I understand what you want to do here. The Coords you are forcing to be
May 7
Tim Weaver
,
Hakan Kjellerstrand
3
May 7
Die Hard Problem from TLA+
Thank you for the response and the extremely helpful information! I've been studying the examples
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Die Hard Problem from TLA+
Thank you for the response and the extremely helpful information! I've been studying the examples
May 7
Leszek Buczkowski
, …
Neng-Fa Zhou
7
May 6
foreach with predicate
Picat took pattern-matching rules from B-Prolog. Horn clauses can be translated to pattern-matching
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foreach with predicate
Picat took pattern-matching rules from B-Prolog. Horn clauses can be translated to pattern-matching
May 6
Yurii Rashkovskii
, …
Nartoo Meon
4
Apr 27
Geting more than one top plan with different costs
Original code of the planner module can be found on the official site on the Modules page(here).
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Geting more than one top plan with different costs
Original code of the planner module can be found on the official site on the Modules page(here).
Apr 27
jf
,
Hakan Kjellerstrand
4
Mar 31
include question
Dear Sir, I know import for modules and cl, but import must be placed separately in the header and cl
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include question
Dear Sir, I know import for modules and cl, but import must be placed separately in the header and cl
Mar 31
C. G.
Mar 16
minor correction to the user guide
I think in the options for sat (section 12.6.3), dump(File) should actually be $dump(File). best
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minor correction to the user guide
I think in the options for sat (section 12.6.3), dump(File) should actually be $dump(File). best
Mar 16
Neng-Fa Zhou
,
Peter Bernschneider
4
Feb 4
Picat Version 3.8 Released
Thanks for the link and the make file! I tried the tricks proposed in the above Stackexchange post,
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Picat Version 3.8 Released
Thanks for the link and the make file! I tried the tricks proposed in the above Stackexchange post,
Feb 4
Neng-Fa Zhou
Jan 31
Summary of Picat Usability Feedback
Thank you to everyone who has responded to the Picat Usability Feedback questionnaire! So far, we
unread,
Summary of Picat Usability Feedback
Thank you to everyone who has responded to the Picat Usability Feedback questionnaire! So far, we
Jan 31