Scalar FunctionsMath FunctionsacosCopy MarkdownReturns the arc cosine of the input (in radians). Input must be in [-1, 1].Syntax acos(x) Parameters PropTypexnumeric Returns: real Examples Example 1 print acos(1) print_0 (real)0.0absReturns the absolute value of a numeric expression, preserving the input type.asinReturns the arc sine of the input (in radians). Input must be in [-1, 1].