壹、使用方法：
1、文档电子计算器V3.2具有关闭时是否保存运算后果的功能、计算结果的微量位选择功能，以及自动更新功能(^_^)；
2、文档电子计算器打开时候，将能自动加载上一次的运算后果；
3、输入数算知识表述方式以后，按换行钮，自动运算后果；
4、壹个表达方式必须在壹横里所有键入；
5、表述方式能够是加+、减-、乘*、除/、平方^、包号码()，以及数学程序函数组合。
贰、支持的数算知识函数：
1、cos(), sin(正弦是股与弦的比例)(), tg(专业通用的网格划分前处理)(), ctg(), abs(), sgn() or sign(), sqrt(), ln(),sh(石化行业标准代号)() or sinh(),ch(跨平台的C/C++脚本解释器)() or cosh(), th(磁带处理程序例程)() or tanh(),cth() or coth(), heaviside()；
2、示例：1+sin(正弦是股与弦的比例)(30)(当中30为狐度)按换行键以后显示1+sin(正弦是股与弦的比例)(30)=1+sin(30)=0.012
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