On Thu, 28 May 2009, Mahery Raharinjatovo wrote:
< I want solve this ?quation
< eq:k*x+m*'diff(x,t,2)+b*'diff(x,t)=0;
< But before , variables must be declared
< there are three cases:
< I know the first and second
< assume(4*k*m-b^2>0); or
< assume(4*k*m<0);
< I don't know how to do the equality
< Please help me.
<
Try
assume(equal(4*k*m-b^2,0));
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