The most common mathematical tools found in UNIX workstations take the form of calculators and more advanced spreadsheet programs, such as GNU Calc.

UNIX 工作站中存在的最常用数学工具以计算器和更高级的电子表格程序（如 GNU Calc）的形式出现。

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Fuzzy sets and fuzzy logic are important mathematical tools for processing uncertain and vague information, which has been widely applied to approximate reasoning and so on.

模糊集与模糊逻辑是处理大量存在的不确定性与模糊性信息的重要数学工具，在近似推理等领域有着广泛的应用。

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Professor Ernest s. Kuh attacked this problem from a theoretical background of graph theory, optimization theory and other mathematical tools, and has obtained remarkable results.

葛守仁教授应用图论、优化理论等数学工具，对集成电路的布线进行了理论研究，并已经取得了可喜的成果。

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Mandelbrot moved on to greener pastures, applying his new mathematical tools to a wide variety of fields.

FORBES: Mandelbrot: A Math Maverick Takes Stock

In particular Roth uses the mathematical tools of game theory to find fixes for big, broken systems.

FORBES: Magazine Article

The economists sometimes argue that geography came to a halt way back because the mathematical tools of the day were not up to the job.

ECONOMIST: Knowing your place