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
@@ -0,0 +1,6 @@
+# Hankel function H2_n(x) on the real line for n=0,1,2,3
+h0 = lambda x: hankel2(0,x)
+h1 = lambda x: hankel2(1,x)
+h2 = lambda x: hankel2(2,x)
+h3 = lambda x: hankel2(3,x)
+plot([h0,h1,h2,h3],[0,6],[-1,2])