From 81daaf6593dd7492f994ce82cfc033522e4973ac Mon Sep 17 00:00:00 2001 From: unknown <18951088369@163.com> Date: Fri, 16 Jan 2026 08:51:00 +0800 Subject: [PATCH] vault backup: 2026-01-16 08:51:00 --- 素材/柯西中值定理与常见辅助函数.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/素材/柯西中值定理与常见辅助函数.md b/素材/柯西中值定理与常见辅助函数.md index cbf664f..76332e8 100644 --- a/素材/柯西中值定理与常见辅助函数.md +++ b/素材/柯西中值定理与常见辅助函数.md @@ -91,7 +91,8 @@ $$ $$ 整理后即得所求。 ---- + + ## **辅助函数的构造方法** @@ -136,7 +137,7 @@ f'(\xi) + P(\xi)f(\xi) = 0 $$ 可构造积分因子: $$ -\mu(x) = e^{\int P(x)dx} +\mu(x) = e^{\int P(x)\mathrm{d}x} $$ 并设辅助函数: $$ @@ -179,7 +180,7 @@ $$ 属于一阶线性微分结构,其中 $P(x) = -2x$。 积分因子为: $$ -\mu(x) = e^{\int (-2x)dx} = e^{-x^2} +\mu(x) = e^{\int (-2x)\mathrm{d}x} = e^{-x^2} $$ 构造辅助函数: $$ @@ -219,7 +220,7 @@ f'(\xi) - (1-\xi) f(\xi) = 0 $$ 积分因子为: $$ -\mu(x) = e^{\int (x-1) dx} = e^{\frac{x^2}{2} - x} +\mu(x) = e^{\int (x-1) \mathrm{d}x} = e^{\frac{x^2}{2} - x} $$ 构造辅助函数: $$