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请教用软件能不能把有理式拆成简单的有理式之和?

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abababa posted 2017-1-14 20:59 |Read mode
就像积分里那样,把一个分母能因式分解的有理式拆成几个简单的有理式之和的形式,这个能不能用软件自动做出来?用待定系数的方法一步步试也能做,但是觉得有点不统一,每个不同的有理式都要特别对待。

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original poster abababa posted 2017-3-5 23:04
回复 1# abababa

这个现在会了,用 Apart.
Apart[1/((x+1)(x+2))]=$\frac{1}{x+1}-\frac{1}{x+2}$

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