식 (1~60)으로 설정된 시스템 방정식을 전미분하여 변화율의 형태로 유도하고, 각 방정식은 변화율과 모수값들의 선형결합의 형태로 표현하였다.
The system equation set in Equations (1~60) was differentiated and induced in the form of rate of change, and each equation was expressed in the form of a linear combination of rate of change and parameter values.