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  "body": "\n## Summary\n\nThe complex exponential is the function $z \\mapsto e^z = \\sum_{n \\ge 0} z^n / n!$ on $\\mathbb{C}$, see the [[definition|054VXHMCA3]].\nIt extends the real exponential function, it is entire, and it has period $2\\pi i$.\n",
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