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--- function:ACOS [2015/01/15 06:04] – created peternlewis
+++ function:ACOS [2025/11/27 08:39] (current) – peternlewis
@@ Line 1: / Line 1: @@
-The ACOS function returns the arccosine of its argument which must be int he range -1 to 1 inclusive.
+====== ACOS Function ======
+The ACOS(x) function returns the arccosine of its argument which must be in the range -1 to 1 inclusive.
+If ACOS(x)=y, then [COS](COS)(y)=x.
+===== See Also =====
+=== Functions ===
+* [[:Functions|See all Functions]]