With the discussion of Takebes Zoyakujutsu,some conclusion were obtained that Takebes Zoyakujutsu was consistent with the formula of Teishu.

There exists a "trap" in the single pendulum period formula T=2πl/g.

By studying Asian option with floating striking price,incorporating European option pricing formula with transaction costs,and using the security combination technology and nonarbitrage theory,this article,which is based on Black-Scholes model,deduces the nonlinear option pricing model with transaction costs.

By studying the Asian option with fixed striking price and combining the pricing formula of the European option with Transaction Costs, the securities combination technology and the nonarbitrage theory were applied to a nonlinear pricing model of the option with Transaction Costs.

For the shortages of the formula definition and its application,some improvement measurements are presented,which can solve the inquiry problem of .

Opinion on Criteria for Strength Requirements in Specifications for Hydraulic Concrete Construction;