Courant and Friedrich's classical treatise was first published in 1948
and tThe basic research for it took place during World War II. However,
many aspects make the book just as interesting as a text and a reference
today. It treats the dynamics of compressible fluids in mathematical
form, and attempts to present a systematic theory of nonlinear wave
propagation, particularly in relation to gas dynamics. Written in the
form of an advanced textbook, it should appeal to engineers, physicists
and mathematicians alike.