
"Using CalcQX, no longer double checking the answer by doing the calculation again!"
Standard Mode: Works like the way billions of real standard calculators in the world do.
Engineering Mode: Capable of doing complex scientific calculation, but remains easy-to-use as a standard calculator.
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Retina display ready for vivid and elegant image
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Up to 50 memory slots for historical calculations/expressions
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Swipe-right to undo, swipe-left to redo at any step during calculation
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Jump into any step of calculation to modify operator or operand
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Info-rich display
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Percent button will behave like real calculator
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4 additional memory slots (M1 ~ M4) for calculation (Tap-and-hold to memory the number currently shown on the screen and tap again to recall)
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Reusable expressions/results
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Clipboard/email support.
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More great features, but even easier to use than build-in calculator. You will love it!