DSolve doesn't solve easy dif. equation?
- To: mathgroup at smc.vnet.net
- Subject: [mg56045] DSolve doesn't solve easy dif. equation?
- From: "Severin Posta" <severin at lumen.tf.jcu.cz>
- Date: Thu, 14 Apr 2005 08:54:45 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, when I try to solve DSolve[(-(64 + 302*z + 744*z^2 + 1389*z^3 + 2043*z^4 + 1887*z^5 + 1161*z^6 + 624*z^7 + 366*z^8 + 140*z^9 + 28*z^10))* f11[z] + 9*z*(-2 - 5*z + 5*z^3 + 2*z^4)*(-2 - 10*z - 3*z^2 + 20*z^3 + 25*z^4 + 18*z^5 + 6*z^6)*Derivative[1][f11][z] + 9*z^2*(-2 - 5*z + 5*z^3 + 2*z^4)*(-2 - 7*z - 7*z^2 + 7*z^4 + 7*z^5 + 2*z^6)*Derivative[2][f11][z] == 0, f11[z], z] I get many strange looking messages..? Why? Thanx! Sever.