DLMF:

Figure 11.3.9 (See in context.)

Figure 11.3.9: $|\mathop{\mathbf{H}_{{\frac{1}{2}}}\/}\nolimits\!\left(x+iy\right)|$ (principal value) for $-8\leq x\leq 8$ and $-3\leq y\leq 3$ . There is a cut along the negative real axis.

Annotations:

Symbols:: $\mathop{\mathbf{H}_{{\nu}}\/}\nolimits\!\left(z\right)$ : Struve function and $x$ : real variable
Keywords:: Struve functions and modified Struve functions
Permalink:: http://dlmf.nist.gov/11.3.F9.mag
Encodings:: Magnified png, VRML, X3D, pdf