OpalCalc Reviews

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It has 2 panes, the left can contain variables and it is easy to use. You can save sheets of calculations if you wish.

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Insanely underestimated calculator, it offers many user friendly options and can convert also units and currencies in a breeze. It's also insanely resizable and fast to open. I recommend it over any other graphical calculator.

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Customized and speedy feeling

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  1. Really nice calculator because you can easily add custom functions to fit your style and your job. In my case, as a web developper a function to easily calculate width of an element in a webpage.
  2. Also the mix between text and numbers is awesome because it is easier to make sense of what you just did. For example for some cash spending. Having the label besides the number really helps.
  3. Nifty conversion and calc (goodies) about time and cash rate. Wow, how many times did I check USD to CAD dollars before an online buy.
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