What makes this calculator implementation unusual: * 38 digits internal precision, for improved precision on long calculations * adaptive digits display takes maximum benefit of the devices’s screen * 5 Position RPN stack, for that little bit of extra headroom * advanced scientific & business Functions, including some rare ones * sliding button panels so all functions are available even on smaller devices. Supports all iOS 9.0 and later devices, all orientations. This is a universal app for any iOS device. See our tutorial for RPN at https://spicybullfrog.com.
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