c02 - Zeros of Polynomials

Chapter Introduction
c02afc	nag_zeros_complex_poly Zeros of a polynomial with complex coefficients
c02agc	nag_zeros_real_poly Zeros of a polynomial with real coefficients
c02akc	nag_cubic_roots Zeros of a cubic polynomial with real coefficients
c02alc	nag_quartic_roots Zeros of a quartic polynomial with real coefficients