Exp4j

<h2 id="features">Features</h2>
<ul><li>Variables can be used in expressions</li>
<li>exp4j comes with a set of common built-in functions</li>
<li>Users can create and use their own custom operators</li>
<li>Users can create and use their own custom functions</li></ul>
<h2 id="license-terms">License terms</h2>
<p>exp4j is released under the terms of the <a href="/facts/Apache_License_2.0/5AeIjas8">Apache License 2.0</a>
</p>
<h2 id="examples-of-usage">Examples of usage</h2>
<p>Calculating the result of

3
        ∗
        
          
            
              sin
              ⁡
              
                (
                π
                )
              
              −
              2
            
            e
          
        
      
    
    {\displaystyle 3*{\frac {\sin {(\pi )}-2}{e}}}

can be done in the following way:
</p>
Expression e = new ExpressionBuilder("3 * (sin(pi) - 2 )/ e")
        .variables("pi", "e")
        .build()
        .setVariable("pi", Math.PI)
        .setVariable("e", Math.E);
double result = e.evaluate();

<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Mxparser/Gl4WJ8Lp">mXparser</a> - Mathematical Expressions Parser / Evaluator</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>"Maven Central Repository Search". search.maven.org. Retrieved 2022-03-16. <a href="https://search.maven.org/artifact/net.objecthunter/exp4j/0.4.8/jar" target="_blank">https://search.maven.org/artifact/net.objecthunter/exp4j/0.4.8/jar</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
</ol>

Exp4j open-in-new

Exp4j