##最近通勤路上一直在读这本，深入浅出，比同济六版好太多，要是大学学这本不知要少走多少弯路

##very thorough in calculus theories and also in application to various of areas, like economics, biology physics and engineering. rich in graphs the author is very good at arrange materials, which would help you a lot on remembering the content. use it as...  

##挺好的一本教科书，就是太厚了，PDF版还看不惯

##傅立叶变换和声音联系那章绝了！