Re: Degree overflow in pow_monome - PARI

[Phat Tran <minhphat@gmail.com>]

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Back to the problem, I found that the function gpowgs() had caused the 
error. I replaced it with powgi(), but it gave me a wrong answer. (I got
 a correct answer by using GP). I assigned m, n, b and d 30-digit 
numbers. 
Any help ?

Thanks, 

Phat

On Wed, Mar 17, 2010 at 9:32 PM, Phat Tran <minhphat@gmail.com> wrote:

***ÂÂ degree overflow in pow_monome.
 *** Error in the PARI system. End of program.

I got the error message above while running the codes in C using PARI/GP 2.3.5 under cygwin.

ÂÂÂ GEN m = readseq("123456789");
ÂÂÂ GEN n = readseq("1234567");
ÂÂÂ
ÂÂÂ GEN a = readseq("7");
ÂÂÂ GEN c = readseq("8");
ÂÂÂ
ÂÂÂ GEN b = readseq("10358");
ÂÂÂ GEN d = readseq("49850");
ÂÂÂ
ÂÂÂ
ÂÂÂ GEN x = pol_x[fetch_user_var("x")];
ÂÂÂ GEN y = pol_x[fetch_user_var("y")];
ÂÂÂ GEN z = pol_x[fetch_user_var("a")];
ÂÂÂ ÂÂÂ
ÂÂÂ z = gpowgs(gmodulo(gadd(x, gmodulo(gadd(y, gmodulss(1, n)), gsub(gpowgs(y, c), d))), gsub(gpowgs(x, a), b)), m);

I wonder if the number m is too big for PARI to be handled.Â

Thanks,

Minhphat