־ԸĕrҪMx|ԺУɫԺУ;߀ҪעԺУĵλMڴ;Ҫע⌣I(y)x
1־Ըk
1.ʷĿȿֻǰƣʷČWУ͌I(y)־ԸҲͬrɂʷČWУ͌I(y)־Ը
2.ĿȿֻǰƣČWУ͌I(y)־ԸҲͬrɂČWУ͌I(y)־Ը
2߿־Ը
ԺУ֮goݶȻݶey
߿־ԸеԺУcI(y)ҪݶHкܶs]ע@һc¸߷ֵ;߷һƿɿ313֣Mǻt(y)WI(y)5ԺУ飺t(y)WߵȌƌWУt(y)WԺt(y)WߵȌƌWУt(y)WߵȌƌWУt(y)WߵȌƌWУԓȡY
ԭ£WУݶeyYϽ傀ԺУȡ֔ߵΞ飺t(y)WԺt(y)WߵȌƌWУt(y)WߵȌƌWУt(y)WߵȌƌWУt(y)WߵȌƌWУ(һ־ԸδӋ);˽־ԸͶnҎ(gu)te`JԺУֻҪĝMһȡͶnԓܰt(y)WߵȌƌWУڵһλԓķ֔ԓԺУȡM㌣I(y)ȫ
3־ԸxԺУ
ܹkkF(xin)A˂y(tng)͘I(y)^cF(xin)wƵԭkУy(yu)ĸߌӴε˲ų䌍̎鮔YݬRI(y)ČWһD۾ͳˡW̎̌W|n;̌W^еòҵֻ֧ؔܡëϡɌWkWУǧČWMkWУm߰ǧ;I(y)ķɵλρfkWУckWУƽȵF(xin)͘I(y)ЅsҕkԺУ'F(xin)rаl(f)