使用最短编辑距离算法判断两个字符串的相似度

经典的常微分教材，非常清晰，图解常微分，很到位

Vladimir A Zorich Mathematical Analysis

Vladimir A Zorich Mathematical Analysis

《航天器的姿态动力学与控制》[美] Vladimir A.Chobotov 1992.01.pdf

Optical Metamaterials Fundamentals and Applications This book deals with optical metamaterials – artificially structured materials with nanoscale inclusions and strikingly unconventional properties at optical frequencies. These materials can be treated as macroscopically homogeneous media and can exhibit a variety of unusual and exciting responses to light. Man-made materials with subwavelength inclusions have been purposely utilized by artists and craftsmen for centuries, as indicated by a number of glass vessels ranging from the late Roman era to the Renaissance period. However, optical metamaterials have flourished only in the present century thanks to combined advances in nanofabrication, numerical modeling, and characterization tools. In only a few years, the field of optical metamaterials has emerged as one of the most exciting topics in the science of light, with stunning and unexpected outcomes that have repeatedly fascinated researchers, scientists, and even the general public.