Page dedicated to RPGEN routine

post_rpgen_regular_revI added a page dedicated to rpgen.m routine. RPGEN.m calculates P-wave, S-wave, SH-wave and SV-wave radiation pattern using shear-tensile source model. Original, it is a part of my paper “Assessment of P and S wave energy radiated from very small shear-tensile seismic events in a deep South African mine” published in Journal of Geophysical Research.