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A function that can be used in Formulas.
arccos# (v#)
arccos) of each element of the vector v#.
writeInfoLine: arccos# ({ -1.1, -1.0, 0.0, 1.0, 1.1, undefined })
=>
--undefined-- 3.141592653589793 1.5707963267948966 0 --undefined-- --undefined--
© Paul Boersma 2023