Oracle ACOS

Function Description

Function ACOS returns the arc cosine of the argument n, which must be in the range of -1 to 1.
The function returns a value in the range of 0 to pi in radians.

Examples

SELECT ACOS(0.5)
  FROM dual;

Result: 1,0471975511966

SELECT ACOS(0.7)
  FROM dual;

Result: 0,795398830184144
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