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iota-calc X is a calculator for programmers.

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 more...

What's New

Version 1.8.6:
  • 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.


Mac OS X 10.1 or later

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5 1


Current Version (1.x)


Downloads 9,531
Version Downloads 1,027
License Shareware
Date 17 Jan 2011
Platform OS X / PPC 32 / Intel 32
Price $19.95
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