tuple_acos — Compute the arccosine of a tuple.
tuple_acos computes the arccosine of the input tuple T. The arccosine is always returned as a floating point number in ACos. The angles in ACos are represented in radians. The arccosine of a string is not allowed.
Restriction: -1 <= T <= 1
Arccosine of the input tuple.
tuple_asin, tuple_atan, tuple_atan2