The domain of the function appears to be the entire range of real numbers. There is an interval between x = -4 and x = 1, where the function displays unexpected behavior. The values seem to converge more rapidly than in other intervals. Particularly at input x = -4, where the output value is -5.004625346901016, x = -3, where the output is 3.8716666666666684, and x = 1 with 2.361111111111112.

