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SAGE can compute the class group of a quadratic field, but it has issues with computing the order of elements within that class group:
```
QF.=QuadraticField(-39)
CF=QF.class_group()
CF(QF.ideal(1+…
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See https://groups.google.com/forum/#!searchin/sage-support/anomaly|sort:relevance|spell:true/sage-support/PzrQ6kUzSJg/m99x--9TS-oJ
The upshot is that when computing the order of a point on an elli…
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There is some bug in the method .count_points() which belongs to elliptic curves defined over finite fields. This might be specific to EC defined over number fields - I only get this error when I ta…
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how the -R switch works in bsgs mode
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First attempt to provide an algorithm using less memory than the "baby step giant step" algorithm for generic discrete logarithm.
This algorithm uses only (small) constant memory.
Proposed patch a…
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Compute the following multiplication with bsgsRatio of 2.0 and 10.0 consecutively
```
|1 1| x |2|
|1 1| |2|
```
Result with bsgsRatio of 10.0 (correct) :
```
|4|
|4|
```
Result with bs…
Thity updated
2 years ago
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The current logic for `IntegerModRing_abstract.log()` is as follows:
1. If `logarithm_exists=True` was passed: Call Pari's `znlog` with just the elements.
2. Else, if the modulus is prime: Compute …
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Hi @Yingjie4Science,
I'm having a lot of struggle reviewing your package/paper. Sorry maybe is my fault (it's my first time as a JOSS reviewer 😬).
On the JOSS website it says **Version: v0.1.0** …
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PARI now supports point counting over `F_q` instead of `F_p`. We should use this new functionality in Sage!
CC: @pjbruin @JohnCremona @kedlaya @jpflori @defeo
Component: **elliptic curves**
Keyw…
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