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Javaluator

A java infix evaluator based on "Shunting Yard" algorithm.

5.0 Stars (5)
61 Downloads (This Week)
Last Update:
Download Javaluator-v3.0.1.zip
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Description

Evaluate an arithmetic expression is as simple as:
Double result = new DoubleEvaluator().evaluate("(e^3-1)*sin(pi/4)*ln(pi^2)").

But Javaluator provides you with much more ...

Key features:
- Functions support, including variable argument count.
- Constants support: e, pi, etc ...
- Variables support: Example sin(x) for x = pi/4.
- Highly configurable: Reduce the built-in operator or function sets, define your own brackets.
- Extensible: Define your own grammar, or extends the existing one.
- Localizable: Define localized names for functions or constants.
- Syntax check
- Small footprint: 26kB, no additionnal library required.
- Fully documented

Please visit the project site to learn more : http://javaluator.fathzer.com

If you use Javaluator in your product, we will be happy to add a link to your product in the Javaluator web site. Send an email to javaluator@fathzer.com.

If you think Javaluator is valuable, vote up below.

Javaluator Web Site

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User Ratings

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ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Very easy to use, and adapt to your particular needs.

    Posted 06/28/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    The Wikipedia page about operator precedence explains Javaluator uses the standard operator precedence (-2^2=-4). Excel or bash shell script use another convention where -2^2=4. This can be set using the DoubleEvaluator.Style class in version 1.2.1. Support is available through the tickets and the discussion tabs.

    Posted 11/20/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Works great, but it is hard to get help. Maby the javaluator should have had a forum? Minor bug however: -2^2 = -4 (-2)^2 = 4

    Posted 11/16/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    works great.

    Posted 11/02/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Thanks javaluator

    Posted 09/24/2012
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Additional Project Details

Intended Audience

Developers

Programming Language

Java

Registered

2012-08-14

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