Given two points x'=(x'1,x'2,...x'N)屬於R_N
and x"=(x"1,x"2,...x"N)屬於R_N
their convex combination is the set of points x_bar 屬於 R_N
for some λ[0,1],given by x_bar = λx'+(1-λ)x"=[λx'+(1-λ)x"1,...,λx'N
+(1-λ)x"N] 請問x'和x"是指什麼 還有為什麼λ非得介於[0,1]之間 不能[-oo,oo]嗎
謝謝
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and x"=(x"1,x"2,...x"N)屬於R_N
their convex combination is the set of points x_bar 屬於 R_N
for some λ[0,1],given by x_bar = λx'+(1-λ)x"=[λx'+(1-λ)x"1,...,λx'N
+(1-λ)x"N] 請問x'和x"是指什麼 還有為什麼λ非得介於[0,1]之間 不能[-oo,oo]嗎
謝謝
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