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zero2pol(z) |
| See Also | pol2zero , polval , poly |
p that corresponds to a
polynomial
p[x]
which is zero at each of the elements of z
where z is a real, double-precision, or complex column vector; that is
p[z ] = 0 for i = 1, . . . , n
i
n is the length of the vector z.
The return value has the same type as z,
its length is n+1,
and the n+1-th element of the return value is 1.
z = {-1, +1}
p = zero2pol(z)
pol2asc(p)
returns
-1 + 0 x^1 + 1 x^2