【摘要】 高等数学中二元函数极值问题的求解方法对三元及更多元的函数并不适用。本文利用二次型的正定性讨论了n(n≥3)元函数的极值问题。更多还原

【Abstract】 The method of solving two variable extreme value problems does n~′t suit to the finding solutions of three or more than three variable extreme value problems. n (n≥3) variable extreme value problems are discussed by the positive definite property of quadratic form.更多还原