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2020-11-09 13:53:31 -0600 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?

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2016-11-14 21:58:02 -0600 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

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2016-11-14 10:22:01 -0600 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 $\mathbb Z_m$.

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2016-05-18 13:28:51 -0600 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?