dP/dZ+CP/(D+BZ)=[(AB-E)Z+AD-F]/(D+BZ) 为P对Z的一阶线性微分方程,
e^[-∫CdZ/(D+BZ)]=e^[(-C/D)ln(D+BZ)]=(D+BZ)^(-C/D),进而 则可求出 P=P(Z).
字母太多太繁.
dP/dZ+CP/(D+BZ)=[(AB-E)Z+AD-F]/(D+BZ) 为P对Z的一阶线性微分方程,
e^[-∫CdZ/(D+BZ)]=e^[(-C/D)ln(D+BZ)]=(D+BZ)^(-C/D),进而 则可求出 P=P(Z).
字母太多太繁.