[sage-support] Performance bottleneck when turning symbolic expression into polynomial ring

2013-02-16 Thread marco nijmeijer
In a study of the Secant algorithm I am looking for a series expansion of the algorithm in the form of a polynomial as follows C2, C3, C4, C5, C6, C7, C8, C9, C10= var('C2 C3 C4 C5 C6 C7 C8 C9 C10') R.=PowerSeriesRing(SR) P.=PolynomialRing(SR) order = 6 f= x+C2*x^2+C3*x^3+C4*x^4+C5*x^5+C6*x^6+C

[sage-support] Re: Boolean Variables

2013-02-16 Thread akhil
On Saturday, February 16, 2013 9:38:14 AM UTC+5:30, Santanu wrote: > > Dear all, > I have the following problem. > > > I am working with Boolean variables. So I call the following. > > from sage.crypto.boolean_function import BooleanFunction > R.=BooleanPolynomialRing(10) > > > Suppose during

Re: [sage-support] Boolean Variables

2013-02-16 Thread charles Bouillaguet
Hi, If you have a polynomial f = x1*x2+x3+x4, then isn't f.subs( {x4 : blablabla] ) what you are looking for ? Charles 2013/2/16 Santanu Sarkar : > Dear all, > I have the following problem. > > > I am working with Boolean variables. So I call the following. > > from sage.crypto.boolean_functio