211线性规划标准形式与基本定理 例 max+x min st.2x1+3x2≤6,+ ≥0 7x,≥4 4 4 ≥0 2 3 ≥0 令x2=y2-y2",y2≥0,y2"≥0 标准形:min-x1-y2+y2 st.2x1+3y2-3y2"+x3=6, x1+7y2-7 x1≥0,y2≥0,y2"≥20,x3≥0,x4≥0 ◎2007 Fang Weiguo School of economics and management© 2007 Fang Weiguo School of Economics and Management