推 keith291:你可以po在同一篇 61.228.31.125 01/26 21:05
→ linda1218:謝謝 114.43.132.95 01/26 21:16
f(x,y)=2+2x+2y-x^2-y^2
=> find the extreme value and point of f(x,y) which restrict to region D
D is bounded by x=0, y=0 , and y=9-x
--
╱ ╲ ●法師 Wizard█ LV72 ╔═══╦══════════╦════╗
▕ ◤◥◣ ▏血....+...魔....+... ║ 武器]║████防具█]█■]║█飾品█║
▉◤●█● ▎力08+..+..智12+06+07 ║+9瑪那║+7馬帽]+9智靴]+7瑪球║八級耳環║
▕◥”﹒ ◤ ▏敏07+..+..精12+05+.. ║+9水仗║+0古袍]+9智內]智腰帶║八級項鍊║
▕ ◢]▼]◣ ▏體12+01+..魅08+06+14 ║+9天雷║+8銀斗]+9力套]魅腰帶║黑法師鍊║
●◥──◤─ ●AC - 999● 00 無神 ╚═══╩══════════╩════╝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.43.132.95