Integer.{perfect_power,is_prime_power,is_irreducible}: Handle easy cases without PARI#35847
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vbraun merged 5 commits intosagemath:developfrom Jul 9, 2023
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…done without PARI
…done without PARI (fixup)
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| if n >= 4: | ||
| if not (n & 1): | ||
| if mpz_popcount(self.value) == 1: | ||
| return smallInteger(2), smallInteger(mpz_sizeinbase(self.value, 2) - 1) |
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I would prefer sanity tests for this.
It's so easy to get this wrong by +-1....
…sts for powers of 2
kliem
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LGTM. |
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Thank you! |
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Documentation preview for this PR (built with commit d2c9c5e; changes) is ready! 🎉 |
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gh-35919: `sage.matroids`: Update `# needs`, modularization fixes for imports <!-- Please provide a concise, informative and self-explanatory title. --> <!-- Don't put issue numbers in the title. Put it in the Description below. --> <!-- For example, instead of "Fixes #12345", use "Add a new method to multiply two integers" --> ### 📚 Description <!-- Describe your changes here in detail. --> - Many `# optional` are removed because small prime finite fields no longer need to be marked `# optional/needs sage.rings.finite_rings` since #35847 - Other `# optional` are replaced by codeblock-scoped `# needs` tags - Remaining `# optional` with standard features are replaced by `# needs` - Some import fixes needed for separate testing of **sagemath-modules** or **sagemath-graphs**[modules] from #35095 <!-- Why is this change required? What problem does it solve? --> <!-- If this PR resolves an open issue, please link to it here. For example "Fixes #12345". --> This is: - done with the help of `sage -fixdoctests` from #35749 - Part of: #29705 - Cherry-picked from: #35095 <!-- If your change requires a documentation PR, please link it appropriately. --> ### 📝 Checklist <!-- Put an `x` in all the boxes that apply. It should be `[x]` not `[x ]`. --> - [x] The title is concise, informative, and self-explanatory. - [x] The description explains in detail what this PR is about. - [x] I have linked a relevant issue or discussion. - [ ] I have created tests covering the changes. - [ ] I have updated the documentation accordingly. ### ⌛ Dependencies <!-- List all open PRs that this PR logically depends on - #12345: short description why this is a dependency - #34567: ... --> <!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! --> URL: #35919 Reported by: Matthias Köppe Reviewer(s): David Coudert, Matthias Köppe
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gh-35943: `sage.combinat.designs`: Modularization fixes, update `# needs` <!-- ^^^^^ Please provide a concise, informative and self-explanatory title. Don't put issue numbers in there, do this in the PR body below. For example, instead of "Fixes #1234" use "Introduce new method to calculate 1+1" --> <!-- Describe your changes here in detail --> - Many `# optional` are removed because small prime finite fields no longer need to be marked `# optional/needs sage.rings.finite_rings` since #35847 - Other `# optional` are replaced by codeblock-scoped `# needs` tags - Remaining `# optional` with standard features are replaced by `# needs` - Some import fixes needed for separate testing of **sagemath-graphs** from #35095 <!-- Why is this change required? What problem does it solve? --> <!-- If this PR resolves an open issue, please link to it here. For example "Fixes #12345". --> This is: - done with the help of `sage -fixdoctests` from #35749 - Part of: #29705 - Cherry-picked from: #35095 <!-- Why is this change required? What problem does it solve? --> <!-- If this PR resolves an open issue, please link to it here. For example "Fixes #12345". --> <!-- If your change requires a documentation PR, please link it appropriately. --> ### 📝 Checklist <!-- Put an `x` in all the boxes that apply. --> <!-- If your change requires a documentation PR, please link it appropriately --> <!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! --> <!-- Feel free to remove irrelevant items. --> - [x] The title is concise, informative, and self-explanatory. - [x] The description explains in detail what this PR is about. - [x] I have linked a relevant issue or discussion. - [ ] I have created tests covering the changes. - [ ] I have updated the documentation accordingly. ### ⌛ Dependencies <!-- List all open PRs that this PR logically depends on - #12345: short description why this is a dependency - #34567: ... --> <!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! --> URL: #35943 Reported by: Matthias Köppe Reviewer(s): David Coudert, Matthias Köppe
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gh-35957: `sage.rings.function_field`: Update `# needs` <!-- ^^^^^ Please provide a concise, informative and self-explanatory title. Don't put issue numbers in there, do this in the PR body below. For example, instead of "Fixes #1234" use "Introduce new method to calculate 1+1" --> <!-- Describe your changes here in detail --> - Many `# optional` are removed because small prime finite fields no longer need to be marked `# optional/needs sage.rings.finite_rings` since #35847 - Other `# optional` are replaced by codeblock-scoped `# needs` tags - Remaining `# optional` with standard features are replaced by `# needs` - Some import fixes needed for separate testing of **sagemath-graphs** from #35095 <!-- Why is this change required? What problem does it solve? --> <!-- If this PR resolves an open issue, please link to it here. For example "Fixes #12345". --> This is: - done with the help of `sage -fixdoctests` from #35749 - Part of: #29705 - Cherry-picked from: #35095 ### 📝 Checklist <!-- Put an `x` in all the boxes that apply. --> <!-- If your change requires a documentation PR, please link it appropriately --> <!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! --> <!-- Feel free to remove irrelevant items. --> - [x] The title is concise, informative, and self-explanatory. - [x] The description explains in detail what this PR is about. - [x] I have linked a relevant issue or discussion. - [ ] I have created tests covering the changes. - [ ] I have updated the documentation accordingly. ### ⌛ Dependencies <!-- List all open PRs that this PR logically depends on - #12345: short description why this is a dependency - #34567: ... --> <!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! --> URL: #35957 Reported by: Matthias Köppe Reviewer(s): David Coudert, Matthias Köppe
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📚 Description
Taking care of small primes and powers of two.
In particular, this allows us to set up
GF(2)without pulling in PARI, and avoids many# optionaltags insage.combinat.designsandsage.combinat.posets.📝 Checklist
⌛ Dependencies