a R object, the element-wise arctangent of x, in radians;
Description
Compute the arctangent of each element of an R numeric vector, calling R's atan.
i1 : atan RObject 1
--error or time limit reached in conversion of output to net: type 'debugError()' to run it again; will try conversion to string
o1 = 0.785398163397448
o1 : RObject of type double