On 6/3/26 6:38 PM, Waldek Hebisch wrote: > On Wed, Jun 03, 2026 at 05:34:55PM +0800, Qian Yun wrote: >> It is happening in numsolve.spad, function "findGenZeros" >> that precision is increased by 100. >> >> I think in the attached patch, by reordering the transform >> to be after resetting precision, this problem is solved. > > I am not sure if there is a problem. Namely, to compute result > at requested accuracy we need to increase intermediate precision. > Since final rounding may add to total error computing "exact > 20 digits" (or similar) is rather complex process. So, instead, > normal policy in FriCAS is to keep results at whatever precision > they were computed. But the increased precision is temporary, and not all bits are accurate. Also "complexSolve" comes with a parameter "eps", which dictates the accuracy requirement from user.
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