init

2026-09-19 20:21:47 +02:00
commit 0798933b05
62 changed files with 7658 additions and 0 deletions
@@ -0,0 +1,48 @@
+package fixed
+
+// Generated with arbitrary-precision arithmetic; atan(2^-i) in Q2.62.
+var atanTable = [...]int64{
+	3622009729038561421,
+	2138197195906305896,
+	1129764675555192497,
+	573486189672913777,
+	287855953345232184,
+	144068303048368714,
+	72051730834756821,
+	36028064038054492,
+	18014306884351854,
+	9007187801521083,
+	4503598195715549,
+	2251799634728302,
+	1125899884473003,
+	562949950625109,
+	281474976361130,
+	140737488311637,
+	70368744172202,
+	35184372088149,
+	17592186044330,
+	8796093022197,
+	4398046511102,
+	2199023255551,
+	1099511627775,
+	549755813887,
+	274877906943,
+	137438953471,
+	68719476735,
+	34359738367,
+	17179869183,
+	8589934591,
+	4294967295,
+	2147483647,
+	1073741823,
+	536870911,
+	268435455,
+	134217727,
+	67108863,
+	33554431,
+	16777215,
+	8388607,
+}
+
+// cordicInvK is 1/K (the CORDIC gain compensation) in Q2.62.
+const cordicInvK int64 = 2800459870029452953