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Series values along the real axis Plots of the imaginary part of the first  terms of the Taylor series of  along the real axis. As  increases, the curves vary from red to violet. Because the series misses even terms, the curves for the pairs  and  ,  and  ,  and  coincide. Plots of the first  terms of the Taylor series of  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 10 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 ( ).
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