Formula:3912

Digital Library of Mathematical Functions ID 10.18.E21

${\displaystyle{\displaystyle\phi_{\nu}\left(x\right)\sim x-\left(\frac{1}{2}\nu-\frac{1}{4}\right)\pi+\frac{\mu+3}{2(4x)}+\frac{\mu^{2}+46\mu-63}{6(4x)^{3}}+\frac{\mu^{3}+185\mu^{2}-2053\mu+1899}{5(4x)^{5}}+\cdots.}}$

Symbols List

• ${\displaystyle{\displaystyle\sim}}$:
• ${\displaystyle{\displaystyle\pi}}$: the ratio of the circumference of a circle to its diameter
• ${\displaystyle{\displaystyle\phi_{\NVar{\nu}}\left(\NVar{x}\right)}}$: phase of derivatives of Bessel functions
• ${\displaystyle{\displaystyle x}}$: real variable
• ${\displaystyle{\displaystyle\nu}}$: complex parameter
 

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