Series approximation graphics Series values along the real axis Plots of the real part of the first terms of the Taylor series of at along the real axis. As increases, the curves vary from red to violet. Plots of the real part first terms of the Taylor series of at along the real axis. As increases, the curves vary from red to violet. The radius of convergence of the series is 1. Series values in the complex plane Curves connecting points and by summing successively terms of the Taylor series. The number of terms summed increases from for the lower plane to for the upper plane. Zeros of the series in the complex plane Curves of vanishing real part (red) and vanishing imaginary part (blue) of the first 20 terms of the Taylor series of in the . Contour plot of the argument of the Padé approximant of the function in the . The coloring is cyclical from red () to red ().
