CalculatorX is an enhanced expression calculator. It supports common operations, constants, built-in and custom functions, variables and note-lines. You can even use Binary, Octal, Decimal and Hexadecimal numbers in the same expression to evaluate.

Pros: The Calculator X is an one time expression evaluator. Arithmetic, Logical, Bitwise and Relation operations can be intermixed in your expression. A large number of built in functions are available, as are a whole set of constants. The application also supports custom variables and custom functions. Binary, octal, decimal and hexadecimal numbers could be intermixed in an expression and this software evaluates that easily. User defined custom functions extends the capability of the application. Operations like arithmetic, logical and bitwise, relational, functions, constants are carried out without trouble.

Table and array operations are supported as are alias of functions ( such as sh and hsin being equivalent). Historical of expressions log helps keep track of work done and helps correcting errors and re-doing things from the point of error.

The user interface is organized as a typical scientific calculator. One can key in expressions to be evaluated and get quick results. Same display area shows the sequence of expressions which have been evaluated. This list can be saved in a file for further records and evaluation later.

Cons: Nothing adverse noticed.

Overall: A powerful, easy to learn and easy to use application, this certainly is a 4 star package.