sage: R.<x>=RDF['t']
sage: s=1.0e1*t^3+1.0e-100*t^2+1.01234e-100*t+1.0e1
sage: u=1.0e1*t^3-1.0e1*t^2+1.0e1*t-1.0e1
sage: s*u
100.0*t^6 - 100.0*t^5 + 100.0*t^4 - 100.0*t^2 + 100.0*t - 100.0

What happened to the t^3 term?

Bill.
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