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From: KristinnEs on 3 Feb 2010 18:21
Hello. I am a pretty new matlab user and I have run into a little prolem. I am trying to enter the following command :

dsolve('1*D4y+0.45*D3y-0.165*D2y+0.0045*Dy-0.00175*y=0','y(0)=17.4', 'Dy(0)=(-2.82)', 'D2y=2.0485', 'D3y(0)=(-1.458675)')

When I run this I get the error : There are more ODEs than variables.

Can anyone help me and tell me what I entered wrong? Thank you :)
From: KristinnEs on 3 Feb 2010 18:39
nevermind, my problem has been solved. I declared d2y=... instead of d2y(0)=....
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