iota-calc

Key Features:

• Supports a rich expression format, which is in most cases identical to what you would type in your programming language.
• Support for adding unlimited numbers of variables or variable expressions.
• Built-in debugger that lets you see the expression simplified step by step.
• Debugger Back-step lets you backup as many steps as you like so that you can replay critical operations.
• C/C++ operator precedence
• Mouse optional, all calculator commands and functions can be done using the keyboard alone.
• Mini-Calc Mode lets your calculator take up very little screen real estate, and yet remain entirely usable.
• Running paper tape(s) (1 per calculator) for calculations, allows annotations, and is stored between runs.
• Built-in Ascii chart makes it easy to look up even invisible characters.
• View results in big endian (default) or little endian.
• Numerous built-in unit conversions (memory sizes, lengths, areas, volumes, temperatures, currency etc.)
• Built-in great circle route and straight line distance calculator.

• Binary, Octal, Decimal, hexadecimal, Booleans, Characters, UTF-8 (out only), and UTF-16 (out only)
• Convert automatically between these types in your expression with the keyboard, a button, or a contextual menu.

• Standard: Addition, Subtraction, Multiplication, Division, Modulus, Power, Square Root
• Grouping: Parenthesis
• Variables: Previous Answer
• Bitwise: complement, and, or, xor, shift left, shift right
• Comparators: equals, less than, greater than, less than or equal, greater than or equal
• Logical: and, or, and not
• Trigonometric: Sine, Cosine, Tangent, Arc-Sine, Arc-Cosine, Arc-Tangent, Degrees To Radians, Radians to Degrees
• Other: Min, Max, Round, Ceiling, Floor, Absolute Value, Sign

• Pi

What is new in this release:

• Now computes negative binary and negative octal numbers.
• Now allows you to see the calculator interface at various scaling factors 1x, 1.2x, 1.5x, 1.8x, 2x, 2.5x and 3x. See iota-calc preferences to change the scaling factor.
• Adds a "Restore Factory Defaults" button which restores each preference to its default state.
• Tab key now cycles as follows: moves the cursor to just before next comma, and then just after it (great for adding parameters to a function), after the final comma the next tab press takes the cursor to the end of the expression, another tab press then moves the cursor to the results field (evaluating the expression first). Pressing tab in the results field places the cursor at the beginning of the expressions field.
• Shift Tab works opposite of the tab key
• Command-A now selects all of the input or output fields (depending on which the cursor currently is in).
• Pasting when the cursor is in the answer field now pastes into the expression field instead.
• Doing a "copy" when nothing is selected in either the expression field or the answer field causes the answer to be copied to the clipboard.
• Reorganized the menus. "Convert", "Calculate" and "Debug" are now part of a new "Calc" menu.
• Added HexColor24 output mode which shows the results in terms of a 24bit color.

Limitations:

The trial version expires after 15 days.