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Developer's DescriptionBy Orefa.comPerform conversions and calculations for scientific, financial or computer-related puposes.Powerful calculator for finance, science, math, stats, unit conversions, date and time calculations, numeric bases, bit-level operations, complex numbers, random numbers, prime numbers, fractions, trigonometry, NIST scientific constants. Quick popup access. selectable keypads, button size, font, display format. Editable work area: calculate, annotate your work, change and repeat your calculations, save to file and restore. Detailed Help File.