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Re: How to solve the integrate problem

• To: mathgroup at smc.vnet.net
• Subject: [mg128122] Re: How to solve the integrate problem
• From: Bob Hanlon <hanlonr357 at gmail.com>
• Date: Mon, 17 Sep 2012 00:22:48 -0400 (EDT)
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• References: <20120916072234.342B467DE@smc.vnet.net>

Integrate[Q (P - W) - M (x - Q), {x, Q, Infinity}]

Integrate::idiv: Integral of M Q+P Q-Q W-M x does not converge on
{Q,\[Infinity]}. >>

Integrate[Q*(P - W) - M*(-Q + x),
   {x, Q, Infinity}]


Integrate[P*x - W*Q + S (Q - x), {x, 0, Q}] // Simplify

(1/2)*Q^2*(P + S - 2*W)


Bob Hanlon


On Sun, Sep 16, 2012 at 3:22 AM,  <toc531 at gmail.com> wrote:
> x>Q ,Q(P-W)-M(x-Q),  x belongs(Q,infinite)
> x<=Q,P*x-W*Q+S(Q-x), x belongs(0,Q)
>
> Q,P,W,M,S are unknown constant number.
>
> I want to *dx*
>
> THANK U
>

• References:
  • How to solve the integrate problem
    • From: toc531@gmail.com