oldk1331 wrote:
>
> Seems caused by r1893,
> "Use regular factorizers instead of custom ones"
Yes, that looks like direct reason. Note however that
factorization in case of floating point coefficients
is unstable. AFACIS we do not have (and never had)
factorizer which can reasonably handle floating
point coefficients.
I am not sure what to do with 'solve': in case
of linear systems the result was OK. But in case
of higher degree it was bogus:
(2) -> solve((0.7*x + 0.4)^3)
[
3 2
x + 1.7142857142_857142857 x + 0.9795918367_3469387755 x
+
0.1865889212_8279883382
=
0.0
]
Type: List(Equation(Fraction(Polynomial(Float))))
So FriCAS treated the polynomial as irreducible despite
fact that modulo rounding error it is third power of linear
polynomial.
--
Waldek Hebisch
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