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20 Theta FunctionsProperties20.2 Definitions and Periodic Properties

Figure 20.2.1 (See in context.)

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Figure 20.2.1: z-plane. Fundamental parallelogram. Left-hand diagram is the rectangular case (τ purely imaginary); right-hand diagram is the general case. zeros of θ1(z|τ), zeros of θ2(z|τ), zeros of θ3(z|τ), zeros of θ4(z|τ).