Status common guide exponential curve equation including a logarithmic curve equation, exponential equation, the number of five kinds of hyperbolic equations, equations and hyperbolic equations growth curve, see Table 1.
The commonly used status exponential-oriented curve equations include the number curve equation, the exponential curve equation, the logaritht hyperbolic equation, the hyperbolic equation and the growth curve equation 5, see Table 1.
The commonly used position index guide curve equations include logarithmic curve equation, exponential curve equation, logarithmic hyperbolic equation, hyperbolic equation and growth curve equation, as shown in Table 1.<br>