| catalytic_est | Function for estimating the catalytic constant | 
| main_est | Main function for estimating catalytic constant k_cat and Michaelis-Menten (MM) constant K_M | 
| MM_catal_est | Function for estimating both of the Michaelis-Menten constant and catalytic constant simultaneously | 
| MM_est | Function for estimating the Michaelis-Menten constant | 
| timeseries_data_example | Product concentration of 101 observed time with different initial conditions |