The most important function is DynCon and DynDis. These two functions are used to perform the result. The valid distributions in this package are Inverse_Gaussian, Exponential, Normal, Negative_Binomial, Lognormal, Logistic, Con_Uniform, Bernoull, Chi_square, Cauchy, Binomial, Beta_dis, Rayleigh, Dis_Uniform, Logarithmic_Series, Laplace, Geometric, Gamma_dis, F_dis, Hypergeometric, Pareto, Poisson, Student_t. And the valid numeral characteristics are cdf, Mean, Variance, Mode, Skewness, Kurtosis. You will meet two different symbols, "o" and "x" on the graphs of numeral characteristics. The former means the numeral characteristic exists, but the latter means not, so we set it to 0.