
Re: get coefficients from a symbolic polynomial
Posted:
Jan 5, 2013 3:27 PM


On 1/5/2013 9:49 AM, Qiming wrote:
> > Note that the entire polynomial is symbolic, that is, even the coefficients 0, 1, 2, 3 >are in symbolic form instead of numbers, so I cannot use 'sym2poly(y)' to get the coefficients.
Can you show why you can't? i.e. show what you tried, and the error you get, as it works for me:
EDU>> syms x EDU>> y=3*x^3 + 2*x^2 + x; EDU>> sym2poly(y)
ans =
3 2 1 0
Nasser

