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项目描述

Jep is a Java library for parsing and evaluating mathematical expressions. With this library, you can allow your users to enter an arbitrary formula as a string and instantly evaluate it. Jep supports user defined variables, constants, and functions. A number of common mathematical functions and constants are included.

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Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.

2009-02-18 03:49
3.3

评估速度2倍，3倍快。职能增加（开关，案例，左，右，中，串，小写，大写字母，长度，和Trim）。经营者表得到了加强，并且有其他改进。
标签: Minor feature enhancements
Evaluation speed is 2x-3x faster. Functions have been added (Switch, Case, Left, Right, Mid, Substring, LowerCase, UpperCase, Length, and Trim). The operator table has been enhanced, and there are other enhancements.

2007-07-05 10:41
3.0.0

更快的评估者加入。一个可配置的解析器加入。高精度计算使用BigDecimal的实施。一个新的组件架构被使用。更多的却是这样做。
标签: Major feature enhancements
A faster evaluator was added. A configurable
parser was added. High precision calculation using
BigDecimal was implemented. A new component
architecture is used. Much more was done.

2007-04-26 23:45
2.4.1

此版本增加了四舍五入职能轮，地板，和性细胞。它修复了3个小错误。有一个错误1567116解决。
标签: Minor bugfixes
This release adds the rounding functions round, floor, and ceil. It fixes three minor bugs. There is a fix for bug 1567116.

2006-06-09 19:35
2.4.0

此版本包括小千叶增强，并增加许多功能，包括简化，快速评估，更向量和矩阵千叶支持扩展包（原DJEP）。
标签: Minor feature enhancements
This release includes minor enhancements to JEP, and many feature additions including simplification, fast evaluation, and more vector and matrix support in the JEP Extensions package (formerly DJEP).

2006-02-01 08:54
2.3.1

这主要是为2.3.0 bug修正版本，其中包括修复的金额（）函数错误，在JEPTester错误，并在文件断开的链接。
标签: Minor bugfixes
This is mainly a bugfix release for 2.3.0,
including fixes for the sum() function bug, a bug
in JEPTester, and broken links in the
documentation.

Project Resources

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