help with math library?

Hello:I searching for some advance math library that let me evaluate a function whit various variables. I looking more than one, to then compare for performance?Please I some one help to find some clue, I will grateful.Best Regards.

[260 byte] By [aconstante_00a] at [2007-9-29 18:07:50]

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# 1

Is this of any help? -- http://math.nist.gov/javanumerics/#librarieskind regards,Jos

JosHorsmeiera at 2007-7-15 17:26:43 >

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# 2

Are you looking for an evaluator? Is that what you mean?public Number eval(String expression) ?

fjsfjsfjsa at 2007-7-15 17:26:43 >

# 3

> Are you looking for an evaluator? Is that what you> mean?> > public Number eval(String expression) ?If so, you might try this: http://www.beanshell.org

rkconnera at 2007-7-15 17:26:43 >

# 4

Try these links.........www.alphaworks.ibm.com/aw.nsf/bios/mathlibrary4java www-unix.gridforum.org/mail_archive/ gce-wg/2002/Archive/msg00320.html www.idinews.com/sourcecode/IntegerFunction.htmlmathforum.org

breghunatha at 2007-7-15 17:26:43 >

# 5

try this: http://www.singularsys.com/jep/

JProga at 2007-7-15 17:26:43 >

# 6

If you need a math parser, you can find one implemented for Java, Delphi, VC++ (COM), .NET at http://www.bestcode.com. It includes source code so you can take a look too.

There is a set of Java classes called JbcParser:

JbcParser features include:

Easy to use, simple class API.

Comes with predefined functions.

Users can create custom functions/variables.

Function/variable names start with letters and can contain letters, numbers and 齙?

Optimization: Constant expression elimination for repeated tasks.

Operators: +, -, /, *, ^

Boolean Operators: <, >, =, &, |, ! ,<>, >=, <=

Paranthesis: (, {, [

Functions in the form of: f(x,y,z, ...)

Function parameter calculations are only done if needed.

List of predefined functions is available in the documentation.

Provides localization support.

Source code is included.

Then for example, your code can evaluate a string expression like: "( [ SIN(X)^2 ] + COS(1) ) * PI/2"

It is at: http://www.bestcode.com/html/jbcparser.html

Regards,

alidemira at 2007-7-15 17:26:43 >

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