lmptop

lmptop(obj)

:: Converts the coefficients of a polynomial over GF(p) into integers.

return

integral polynomial

obj

polynomial over GF(p)

• Converts the coefficients of a polynomial over GF(p) into integers.
• An element of GF(p) is represented by a non-negative integer r less than p. Each coefficient of a polynomial is converted into an integer object whose value is r.

[0] setmod_ff(pari(nextprime,2^40));
1099511627791
[1] F=simp_ff((x-1)^10);
1*x^10+1099511627781*x^9+45*x^8+1099511627671*x^7+210*x^6
+1099511627539*x^5+210*x^4+1099511627671*x^3+45*x^2+1099511627781*x+1
[2] setmod_ff(547);                 
547
[3] F=simp_ff((x-1)^10);
1*x^10+537*x^9+45*x^8+427*x^7+210*x^6+295*x^5+210*x^4+427*x^3+45*x^2+537*x+1
[4] lmptop(F);
x^10+537*x^9+45*x^8+427*x^7+210*x^6+295*x^5+210*x^4+427*x^3+45*x^2+537*x+1
[5] lmptop(coef(F,1));
537
[6] ntype(@@);
0

References

section simp_ff

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