Hi, Can someone tell me how to use R to solve a simple LP problem like this? Thanks! Maximize 5X1 + 3X2 Subject to: 2X1 + X2 <=40 X1 + 2X2 <=50 Where X1 >= 0 X2 >=0 Andy _________________________________________________________________ ²{¦b´N¤W MSN ·|û¥Ø¿ý¡G¦b½u¤Wµ²¥æ·sªB¤Í¡A§ä¨ì¿³½ì¬Û§ëªº¹Ù¦ñ