MATLAB是优秀的数学计算工具，本文阐述并举例说明如何利用MATLAB来对金融时间序列进行分析及建模。

MATLAB is an outstanding mathematical computing tool. In this paper, we expatiate how to analyze and model financial time sequences with MATLAB.

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为了应对学生数学能力的下降，日本的一些学校重新使用起一种古老的计算工具——算盘。

In response to declining math skills among their students, some Japanese schools are bringing back an ancient calculating device—the abacus.

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甚至利用数学模型和计算工具，也将不会有“理想琴丝”，因为物理参数是钢琴固有的，巴丁说。

Even with math models and calculations, there will never be an "ideal string" because of the physical parameters inherent to the piano, Patin said.

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