2020-11-09 20:53:31 +0200 asked a question Numerical form of the symbolic expression I have a symbolic expression ( a variable polynomial of n degree) 1/9*sqrt(3)*(2*sqrt(3)*x^2*e^(1/2*sqrt(3)) + 3*x*e^(1/2*sqrt(3)))  If possible, I would like these in numeric form as 1.37262 x+1.58496 x^2  Is there a function which does it? 2016-11-20 20:06:40 +0200 received badge ● Scholar (source) 2016-11-15 04:58:02 +0200 commented answer Direct product of $S_n$ and $\mathbb Z_m$ can't we have notation like $\mathbb Z_{3} = {\bar 0, \bar 1, \bar 2}$ and $S_{3}={ (), (1,2), (1,3), (2,3),(1,2,3), (1, 3, 2)}$ and $\mathbb Z_3 \times S_3 = { (\bar 0, ()), (\bar 0, (1,2)), \dots }$?? The one we encounter in 2016-11-15 04:54:31 +0200 received badge ● Supporter (source) 2016-11-14 17:25:42 +0200 received badge ● Editor (source) 2016-11-14 17:22:01 +0200 asked a question Direct product of $S_n$ and $\mathbb Z_m$ How do I generate cayley table for direct product of symmetric group $S_n$ and additive group of integers modulo $\mathbb Z/m\mathbb Z$ or $\mathbb Z_m$. 2016-05-23 03:55:23 +0200 received badge ● Nice Question (source) 2016-05-18 21:15:06 +0200 received badge ● Student (source) 2016-05-18 20:28:51 +0200 asked a question Permutation set acting on another set How do I make a set of permutation acting on another set? A4 = AlternatingGroup(4) r1 = A4("(1,2) (3,4)") r2 = A4("(1,3) (2,4)") r3 = A4("(1,4) (2,3)") N = A4.subgroup([r1, r2, r3]) # generate normal subgroup LC = A4.cosets(N, side="left") print LC print LC[0]*LC[1]  Here I want coset LC[0] act on LC[1]. How do I make it?