Complex Numbers in Algebra
Over the last few chapters it has often been claimed that certain mysteries— de Moivre’s formula for sin nθ (Section 6.6), factorization of polynomials (Section 6.7), classification of cubic curves (Section 8.4), branch points (Section 10.5), genus (Section 11.3), and behavior of elliptic functions (Sections 11.6 and 12.6)—are clarified by the introduction of complex numbers.
KeywordsComplex Number Quadratic Equation Fundamental Theorem Linear Factor Quadratic Factor
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