  Dyakonov-Voigt (DV) surface waves guided by the planar interface of (i)
material $A$ which is a uniaxial dielectric material specified by a relative
permittivity dyadic with eigenvalues $\epsilon^s_A$ and $\epsilon^t_A$, and
(ii) material $B$ which is an isotropic dielectric material with relative
permittivity $\epsilon_B$, were numerically investigated by solving the
corresponding canonical boundary-value problem. The two partnering materials
are generally dissipative, with the optic axis of material $A$ being inclined
at the angle $\chi \in [ 0^\circ, 90^\circ ]$ relative to the interface plane.
No solutions of the dispersion equation for DV surface waves exist when
$\chi=90^\circ$. Also, no solutions exist for $\chi \in ( 0^\circ, 90^\circ )$,
when both partnering materials are nondissipative. For $\chi \in [ 0 ^\circ,
90^\circ )$, the degree of dissipation of material $A$ has a profound effect on
the phase speeds, propagation lengths, and penetration depths of the DV surface
waves. For mid-range values of $\chi$, DV surface waves with negative phase
velocities were found. For fixed values of $\epsilon^s_A$ and $\epsilon^t_A$ in
the upper-half-complex plane, DV surface-wave propagation is only possible for
large values of $\chi$ when $| \epsilon_B|$ is very small.
