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  • | [https://dlmf.nist.gov/20.5.E13 20.5.E13] || [[Item:Q6780|<math>\frac{\Jacobithetaq{4}'@{z}{q}}{\Jacobithetaq{4}@{z}{q}} = 4\sin@{2z} | [https://dlmf.nist.gov/20.5.E13 20.5.E13] || [[Item:Q6780|<math>4\sin@{2z}\sum_{n=1}^{\infty}\frac{q^{2n-1}}{1-2q^{2n-1}\cos@{2z}+q^{ ...
    63 KB (8,340 words) - 15:46, 19 January 2020