berν⁡x+ⅈ⁢beiν⁡x=∑k=0∞ⅇ(3⁢ν+k)⁢π⁢ⅈ/4⁢xk⁢Jν+k⁡(x)2k/2⁢k!=∑k=0∞ⅇ(3⁢ν+3⁢k)⁢π⁢ⅈ/4⁢xk⁢Iν+k⁡(x)2k/2⁢k!.