Derivatives

导数 一个函数\(f(a)=3a\)，它是一条直线。下面来简单理解下导数。让 看看函数中几个点，假定\(a=2\)，那么\(f(a)\)是\(a\)的3倍等于6，也就是说如果\(a=2\)，那么函数\(f(a)=6\)。假定稍微改变一点点\(a\)的值，只增加一点，变为2.001，这时\(a\)将向 ......

Problem 17.9. A foreign currency is currently worth $1.50. The domestic and foreign risk-free interest rates are 5% and 9%, respectively. Calculate a ......

Problem 13.1. A stock price is currently $40. It is known that at the end of one month it will be either $42 or $38. The risk-free interest rate is 8% ......