# Struve function (chart) Calculator

## Calculates a table of the Struve function Hv(x) and draws the chart.

 order v real number [ initial value x increment repetition ]
 $\normal Struve\ function\ H_\nu(x)\\[10](1)\ x^2y''+xy'+(x^2-\nu^2)y={\large\frac{4({\large\frac{x}{2}})^{\nu +1}}{{\large\sqrt\pi}\Gamma(\nu+\frac{1}{2})}} \\\hspace{25} y=H_\nu(x)\\[10](2)\ H_\nu(x)=({\large\frac{x}{2}})^{\nu +1}{\large\sum_{\small k=0}^{\small\infty}\frac{(-1)^k({\large\frac{x}{2}})^{2k}}{\Gamma(k+\frac{3}{2})\Gamma(k+\nu+\frac{3}{2})}} \\$

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