Scientific Calculator Counter 401 Functions Matrix Dot Vector Equation Calculate Solar and Battery Dual Powered 2 Line Display Bus
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2 lines display, 10 + 2 digits, show formula and result clearly.Dual power source, solar and built-in battery, energy saving and convenient.With 401 functions, covering General Calculation (fraction/percent/time/multi-statements/engineering notation), Function Calculation, Complex Number Calculation(CMPLX), CALC, SOLVE, Statistic Calculation (SD, REG), Base Calculation(BASE), Equation Calculation(EQN), Matrix Calculation(MAT), Vector Calculations(VTC), Scientific Constants, Metric Conversion.With multi-replay(up/down/right/left), DEL and M+ keys, represent/correct formula or store result easily.Handheld design, with a removable protector, easy to use and store.