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Plotting two functions
*To*: mathgroup at smc.vnet.net
*Subject*: [mg78326] Plotting two functions
*From*: SK <skhushrushahi at gmail.com>
*Date*: Thu, 28 Jun 2007 04:29:53 -0400 (EDT)
Hi
I have a 5th order equation of the form
eqntony445=r^5+(alpha*X)*r^4+(beta+Pp)*r^3+(delta*X)*r^2+(gamma+Pp)*r
+c*X==0
where alpha, beta, delta and gamma are other combination of terms that
I havent included for the sake of simplicity.
I can plot X with respect to r for various values of Pp
Plot[Evaluate[Table[X /. Flatten[Solve[eqntony445 == 0, X]], {Pp, 0,
20, 5}]], {r, -0.5, 0.5}]
The problem is I have another function of the form
V=Integrate[ ((Pp)/(s)*((r^3+r)/(r^2+1)^2)+2*r,X]
and need to plot it with respect to X. It keeps spitting out stuff of
the form Root, which is understandable for 5th order equations, but I
find that if I can plot V with respect to r then there must be a way I
can take those r values and translate them to X values. Any help will
be greatly appreciated.
Thanks
S
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