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Re: Can somebody integrate this function ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112550] Re: Can somebody integrate this function ?
  • From: "David Park" <djmpark at comcast.net>
  • Date: Sun, 19 Sep 2010 05:40:18 -0400 (EDT)

Works for me on Version 7.0.1. Suppressing the rather long answer:

f[z_] := 5/
   12 (-1 + z) (y^2 - 3 z^2) (27 y^4 - 12 Sqrt[3] y^5 + 4 y^6 + 
     18 y^2 (3 - 2 z) z^2 + 3 (3 - 2 z)^2 z^4 + 
     4 Sqrt[3] y^3 z^2 (-3 + 2 z)); 

intgf[z_] = Integrate[f[z], z];

intgf'[z] == f[z] // Simplify 

True


David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/  


From: c r [mailto:riemannchristoffel at gmail.com] 

Can somebody try this in your version of Mathematica ?

Integrate[(5/12) (-1 + z) (y^2 - 3 z^2) (27 y^4 - 12 Sqrt[3] y^5 +
    4 y^6 + 18 y^2 (3 - 2 z) z^2 + 3 (3 - 2 z)^2 z^4 +
    4 Sqrt[3] y^3 z^2 (-3 + 2 z)), z]

Something is definitely wrong with my version of Mathematica (7).




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