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 @@
+# Modified Bessel function I_n(x) on the real line for n=0,1,2,3
+i0 = lambda x: besseli(0,x)
+i1 = lambda x: besseli(1,x)
+i2 = lambda x: besseli(2,x)
+i3 = lambda x: besseli(3,x)
+plot([i0,i1,i2,i3],[0,5],[0,5])