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polynomial 1. An arithmetic expression composed by summing multiples of powers of some variable. P(x) = sum a_i x^i for i = 0 .. N
The multipliers, a_i, are known as "{coefficients}" and N, the highest power of x with a non-zero coefficient, is known as the "degree" of the polynomial. If N=0 then P(x) is constant, if N=1, P(x) is linear in x. N=2 gives a "{quadratic}" and N=3, a "cubic". 2. polynomial-time.
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