Repository navigation
Ask the radicand rule's rewriting without the condition its inner simplification writes - #2045
Merged
Rafael-SOWNet merged 1 commit intoOct 22, 2026
Conversation
…plification writes Rubi's 7.2.5 x/(acosh(x) sqrt(x - 1) sqrt(x + 1)) ran past the budget. SolveByWritingAConstantMultipleOfARadicandOverIt writes the pair of roots as the root of x^2 - 1 that acosh(x) holds, with the constant factor K, and the inner simplification of the rewriting put provided not x - 1 = 0 over the whole of it: the inverse hyperbolic substitution did not read the condition, and the search split the sum and went by parts. The point it excludes is outside the integrand's domain, and the question is now asked bare. (A derivative check on the rule's answer was tried and dropped: it took three of Rubi's 5.1.4 arcsine rows, answered in 0.2 to 1.4 s, past the budget.) Part of #233. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012sonx8iAspMiwRwokT1Ura
This was referenced Oct 22, 2026
Rafael-SOWNet
deleted the
ask-the-radicands-rewriting-without-its-condition
branch
October 29, 2026 00:43
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Part of #233.
x/(acosh(x) sqrt(x - 1) sqrt(x + 1))ran past the budget.SolveByWritingAConstantMultipleOfARadicandOverItwrites the pair as the root ofx^2 - 1thatacosh(x)holds, times a factorKthat is constant where it is defined.provided not x - 1 = 0over the whole of it. The integrator declinesf provided C, and nothing below read the condition. The point it excludes is outside the integrand's domain anyway.PartialFractions.Bare), asSimplifiedWithoutTheImaginaryUnitalready does elsewhere. A derivative check was tried as well. It cost three 5.1.4 rows their budget and was dropped.x/(acosh(x) sqrt(x - 1) sqrt(x + 1))K Chi(acosh(x)), 0.7 s and 0.04 GBChain against master 78cd31b:
The suite is left to CI. The BREAKING-CHANGES length was measured on the branch. Rebased onto ef4150e.
🤖 Generated with Claude Code
https://claude.ai/code/session_012sonx8iAspMiwRwokT1Ura