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From 23 Jun 2016 to 22 Jul 2016

22 Jul 2016

13:21 Slug #907: ApproxSolve very slow on this example
Do you really need lex? I vaguely recall using several eliminations to compute the various polynomials of the form @... John Abbott
12:17 Slug #907: ApproxSolve very slow on this example
John Abbott wrote:
> OK. @ApproxSolve2@ solves the problem in about 0.8s (on my old MacBook... it'll be faster on t...
Anna Maria Bigatti
11:43 Slug #907: ApproxSolve very slow on this example
OK. @ApproxSolve2@ solves the problem in about 0.8s (on my old MacBook... it'll be faster on the new computer, if De... John Abbott
12:47 Feature #909: ReadExpr: decimal point
A simple quick test passed: @ReadExpr(P, "1.2*x");@ produced the expected result.
JAA notes that there is a minor ...
John Abbott

21 Jul 2016

21:59 Slug #907: ApproxSolve very slow on this example
John Abbott wrote:
> I have just tried the examples again (after Anna revised @ApproxSolve@ yesterday or this mornin...
Anna Maria Bigatti
21:57 Slug #907 (In Progress): ApproxSolve very slow on this example
I have just tried the examples again (after Anna revised @ApproxSolve@ yesterday or this morning). It still seems to... John Abbott
17:19 Feature #909 (Resolved): ReadExpr: decimal point
I have made the necessary (small) changes to @RingElemInput.C@.
Currently there is no specific test for @ReadExpr@, ...
John Abbott
10:58 Feature #909: ReadExpr: decimal point
Anna pointed out that CoCoA-4 has always converted "decimal" numbers into exact rationals; CoCoA-5 does so too. So i... John Abbott

19 Jul 2016

13:21 Feature #909: ReadExpr: decimal point
The current code simply uses @operator>>@ for a @BigInt@.
We could replace it with @operator>>@ for @BigRat@, but th...
John Abbott
10:12 Feature #909 (Closed): ReadExpr: decimal point
The function @ReadExpr@ should also read the decimal point... Anna Maria Bigatti
08:16 Slug #907: ApproxSolve very slow on this example
I've added the improvements we talked about at ICMS Berlin.
Now this example is almost instant :-) :-)
There are a ...
Anna Maria Bigatti

14 Jul 2016

09:25 Slug #907: ApproxSolve very slow on this example
On my old MacBook with CoCoA-5.1.5 this computation took more than 1 hour (then I stopped it).
John Abbott
09:24 Slug #907 (Closed): ApproxSolve very slow on this example
While "playing" with a demo of sparse squares, I noticed that @ApproxSolve@ is strangely slow on this example (while ... John Abbott

04 Jul 2016

11:43 Feature #903 (Closed): New function CallOnGroebnerFanIdeals: call function on GFan ideals
The function @GFanIdeals@ (was @AllReducedGroebnerBases@) has a very big output.
Usually one needs to run a function...
Anna Maria Bigatti
 

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