\[\theta_{\nu}\left(x\right)=\frac{x}{\sqrt{2}}+\left(\frac{1}{2}\nu-\frac{1}{8}%
\right)\pi+\frac{\mu-1}{8\sqrt{2}}\frac{1}{x}+\frac{\mu-1}{16}\frac{1}{x^{2}}-%
\frac{(\mu-1)(\mu-25)}{384\sqrt{2}}\frac{1}{x^{3}}+O\left(\frac{1}{x^{5}}%
\right).\]