Research Space for Linear Algebra & Discrete Mathematics
X1+X2<4 ========>X1+X2<=3X1>1 ========>X1>=2X2>=0則 X1,X2,X3>=0 , X1+X2+X3=1 非負整數解問題C(3+1-1,1)=3 暴力 ==> X1+X2<=3,X1>=2,X2>=0 則(X1,X2)={(2,0),(2,1),(3,0)}
謝謝你，不好意思...我少考慮(3,0)了
X1+X2<4 ========>X1+X2<=3
回覆刪除X1>1 ========>X1>=2
X2>=0
則 X1,X2,X3>=0 , X1+X2+X3=1 非負整數解問題
C(3+1-1,1)=3
暴力 ==> X1+X2<=3,X1>=2,X2>=0 則(X1,X2)={(2,0),(2,1),(3,0)}
謝謝你，不好意思
回覆刪除...我少考慮(3,0)了