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13 Confluent Hypergeometric FunctionsKummer Functions13.7 Asymptotic Expansions for Large Argument
Figure 13.7.1 (See in context.)
See accompanying text
Figure 13.7.1: Regions R1, R2, R¯2, R3, and R¯3 are the closures of the indicated unshaded regions bounded by the straight lines and circular arcs centered at the origin, with r=|b2a|.