help!
- To: mathgroup at smc.vnet.net
 - Subject: [mg6552] help!
 - From: bulent kiziltan <e101501 at orca.cc.metu.edu.tr>
 - Date: Tue, 1 Apr 1997 19:00:51 -0500 (EST)
 - Sender: owner-wri-mathgroup at wolfram.com
 
  I HAVE A PROBLEM WITH A COUPLE OF INTEGRALS.
  THERE ARE TWO INTEGRALS WHICH I HAVE TO SOLVE SIMULTANEOUSLY.I COULDN'T
DO IT. IF YOU CAN HELP ME (OR SOLVE THEM AND SEND ME) IT WOULD BE GREAT.
THE INTEGRALS ARE  dM(r)/dR=4(Pi)R.R.S
                          &                G=CONST(GRAVITATIONAL CONST.)
                                           S=ASSUME IT(DENSITY)
                   dP/dR=-GM(r).S/R/R      M=ASSUME IT(MASS)  
                                           R=RADIUS
                                           P=PRESSURE 
                         
AFTER THEN I HAVE TO MAKE A GRAPH OF R , M , P , S FOR PROPER S&M VALUES.
   THANKS FOR YOUR HELP......