The functional calculus is introduced to determine the optimal conversion rate so as to optimize the issuance strategy of convertible bond,thus offering a new way for the design of original indenture for convertible bond.

• 运用泛函变分原理；求出最优转换速率；并且进一步得到可转换债券的最优发行策略；为可转换债券发行条件的设计提供了一种新的方法.