變數代換

3

Posted by admin | Posted in 05 積分技巧 | Posted on 20-10-2012

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變數代換是非常重要、非常常用的積分技巧,

不熟練它的話將很難在微積分課中存活下來。

通常在微積分書會有一節介紹三角代換,

其實三角代換也算是變數代換的一種,

因此我將它也寫進同一個pdf檔,不過仍有區分為不同的節。

建議先讀過名詞的微分(differential)

按這裡下載

你覺得變數代換寫得如何?

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Comments (3)

我前幾天上課一直苦惱dx到底怎麼變成du
如今完全弄清楚了(教授上課都草草帶過><)
終於懂變數帶換到底在幹嘛好感動!!!
害我好想印成講義使用呵呵
學長真的厲害 期待接下來的內容 ~

P17 example2
求cot(α)的段落
根號裡面,sin(a)^2的數值似乎代錯了?

謝謝告知,打錯了(漏打 ^2 ),但不影響後面。

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