Hi, I have a bug report from Debian [1].
open-axiom seems to hangs in calcutaions of high-order Legendre
polynomial coefficients.
I have reproduced this on Gentoo too. Can't check lastest version, thought.
Quoting:
============ >8 ======================
(1) -> p(0) == 1
Type: Void
(2) -> p(1) == x
Type: Void
(3) -> p(n) == ((2*n-1)*x*p(n-1) - (n-1) * p(n-2))/n
Type: Void
(4) -> p(10)
Compiling function p with type Integer -> Polynomial Fraction
Integer
46189 10 109395 8 45045 6 15015 4 3465 2 63
(4) ----- x - ------ x + ----- x - ----- x + ---- x - ---
256 256 128 128 256 256
Type: Polynomial Fraction Integer
So far so good, now I typed
(5) -> coefficient(p(90),x,90)
and this resulted in
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
19239 edi 20 0 1046m 115m 21m R 99,6 11,6 0:45.43 AXIOMsys
I killed the process "AXOMsys" after awhile :(
============ 8< ======================
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=706813
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