factory direct sales 991ms scientific calculator student exam essential color flip calculator

Function:

240 types of calculation functions 9 basic calculation patterns Multi-step reproduction function 9 variables 79 steps to input the answer and store the error indication Modification, insertion, deletion functions Perfect algebra method Angle unit conversion Trigonometric and inverse trigonometric functions Hyperbolic/inverse hyperbolic functions Decimal (logarithm, natural logarithm, common logarithm, exponent) Algebraic operations (square root, cube root, root, square, cube, reciprocal, factorial) Polar/cartesian coordinate transformation Internal choice Engineering symbols Permutations and combinations Random number generation Input (π, negative sign, exponent symbol) Display format (number of decimal places, effective digits) Scientific notation Percentage calculation Fractional calculation Statistical calculation Standard deviation Bivariate statistical (regression) With a decaposition key LCD clock display Using a single AA battery, it can sustain display for 17,000 hours Dimensions: 75 (width) × 110 (length) × 8 (thickness) mm Weight: 125g (including battery)