文件名称:ExpressCal
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这是一个德国人写的用于计算各种函数的表达式计算工具，可以计算各种数学函数sin cos tg ctg并处理括号，四则运算，还可以使用变量如A，B，C等，是VC中一款不可多得的表达式计算类和计算工具。
-This is a German written expression calculation tool used to calculate the various functions can calculate a variety of mathematical functions sin cos tg ctg and handle brackets and four operations, you can also use variables such as A, B, C, is VC in a rare expression computing and computing tools.
-This is a German written expression calculation tool used to calculate the various functions can calculate a variety of mathematical functions sin cos tg ctg and handle brackets and four operations, you can also use variables such as A, B, C, is VC in a rare expression computing and computing tools.
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