<!-- TWO STEPS TO INSTALL EXPRESSION SOLVER:
  
    1.  Copy the coding into the HEAD of your HTML document
    2.  Add the last code into the BODY of your HTML document  -->
  
  <!-- STEP ONE: Paste this code into the HEAD of your HTML document  -->
  
  <SCRIPT LANGUAGE="JavaScript">
  
  <!-- This script and many more are available free online at -->
  <!-- The JavaScript Source!! http://javascript.internet.com -->
  
  <!-- Begin
  function calc(form) {
  form.result.value=eval(form.expr.value);
  }
  // End -->
  </SCRIPT>
  
  <!-- STEP TWO: Copy this code into the BODY of your HTML document  -->
  
  <center>
  <i>Enter a math expression and click "Calculate" !</i>
  <br>
  <br>
  <form>
  <table border=3 cellspacing=2 cellpadding=5>
  <tr>
  <td align=center><i>Equation</i></td>
  <td align=center><i>Result</i></td>
  </tr>
  <tr>
  <td align=center><input type=text name=expr size=15></td>
  <td align=center><input type=text name=result size=15></td>
  </tr>
  <tr>
  <td colspan=2 align=center><input type=button value="Calculate!" onclick="calc(this.form)"></td>
  </tr>
  </table>
  </form>
  </center>
  
  <p><center>
  <font face="arial, helvetica" size="-2">Free JavaScripts provided<br>
  by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
  </center><p>
  
  <!-- Script Size:  1.09 KB -->