chore: import upstream snapshot with attribution

2026-07-13 12:32:53 +08:00
commit 2a16f2f53b
247 changed files with 69150 additions and 0 deletions
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+# Complete elliptic integrals K(m) and E(m)
+plot([ellipk, ellipe], [-2,1], [0,3], points=600)