W3Eval

[Nikola Stepan]

http://geodet.geof.hr/~mstepan/nik/W3Eval.html

W3Eval is Java applet that evaluates mathematical expressions step by
step. It uses different approach from conventional calculator, which
is more natural to the way people calculate. When you calculate on a
conventional calculator, each time you entered a new number you would
loose sight of the previous one. And if you make a mistake in the
middle of a long expression, you have to start all over.

Features :

- evaluate mathematical expressions step by step
- parse expressions
- reduce parentheses
- large number of built-in functions and operators
- hex, oct, bin and dec numbers
- deg, rad, grad
- works with "infinity" and "not-a-number"
- user-defined variables
- three kind of parenthesis
- detail error checking and reporting
- unlimited size of expressions
- unlimited depth of nesting
- expression builder
- multiplatform
- HTML help ( http://geodet.geof.hr/~mstepan/nik/help.html )
- automatic installation of JRE 1.3 Plug-in
- only 50 kB

Requirements :

- JRE 1.3 ( http://java.sun.com/j2se/1.3/jre/index.html )
- Browser or appletviewer