Sewell, W. E. The polynomial derivative at a zero angle. (English) Zbl 0101.05104 Proc. Am. Math. Soc. 12, 224-228 (1961). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:theory of complex function × Cite Format Result Cite Review PDF Full Text: DOI