On 08/13/2013 08:50 PM, Dale Lukas Peterson wrote:
Also, try the ".series()" command. It might work, as it is expanding
the expression inside out,
to avoid such problems.
Also, if you can put the equations in the form: dx/dt = f(x), and you
have f(x) as a Sympy Matrix of expressions, you can simply do df =
f.jacobian(x), then evaluate (using subs) at the equilibrium
conditions and values of parameters that you are interested in.
Luke
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series did not work. limits did for evaluating the derivatives. First
derivatives were quick. Second derivatives took a long time (15min).
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