This textbook is interesting. it describe the modeling in programming style and math. It make me easy to catch the relation of math formula and programming pesudo code. It does not only the math concept but pesudo code which is used to describe the concept. It is helpful to me while I met the problems in other finance engineering textbook. I can not link the complexity of math fomula to real world. But this textbook gave me another study viewpoints and help me link to to real world.