Is it fixable to meet atan(x) ?
And will it hold for all real values in the rage of [-inf +inf]?
I have code in the hand that could also compute unsymmetric pade approximants but I only use it for exp(x). I yet did not have the time to try implementing it for symbolic functions. The expantion point can be defined on input already. I am interested on getting approximants for the arcustangens(x) Function that hold for all real values.