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 @@
+# Bessel function of 2nd kind Y_n(x) on the real line for n=0,1,2,3
+y0 = lambda x: bessely(0,x)
+y1 = lambda x: bessely(1,x)
+y2 = lambda x: bessely(2,x)
+y3 = lambda x: bessely(3,x)
+plot([y0,y1,y2,y3],[0,10],[-4,1])