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文[1]对二次型约束下最值的求解进行了探讨,多角度多层次给出了其求解策略,读来使人受益匪浅.本文拟从另一角度出发,给出
Wen [1] discussed the solution of the most value under the quadratic constraint, and given its solution tactics in multi-angle and multi-level, so it is beneficial to read it.This paper intends to give another view