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About the application:

Scientific calculator 300 es plus, 991 ex is the calculator for students and engineering student. Calculator 991 es plus provides strong functions in a true calculator 991 ex 300 ex. It makes advanced calculator 991 ex become the most useful calculator for university and school. Application contains some calculators inside: - Primary calculator 300 es plus - Advanced calculator 115 es plus - Scientific calculator 991 ex - Scientific calculator 991 es plus - Graphing calculator 84 plus Let's see some unique features: ◉ Primary calculator 300 es plus and 115 es plus: supports from primary mathematics to advanced math functions: percentage, powers, roots, trigonometric, logarithms calculator. Fraction calculation 991 ex supports convert fraction to decimal, mixed fraction and solve fractions issues. ◉ Advanced calculator 115 es plus: combines of hyper calculator and easy scientific calc. This calculator is a multi-functional advanced calculator 991 ex with all features in one apk. Such as linear algebra, calculus, complex numbers, display effect in rectangular and polar coordinates, matrix and vector. ◉ Scientific calculator 991 es plus: contains smart equation solver. Equation solver can solve quadratic, cubic equations, systems of equations. Caluculator solves any polynomial. Smart scientific calculator 991 ex has exponent calculator includes scientific calculations such as derivative, integral, square root calculation, factorial calculation, pi calculation, equation solver. ◉ Scientific calculator 991 ex: supports calculate with infinity number of digits, prime factors, random numbers, combinations, permutations, GCD and LCM. This calculator 991ex is a true engineering simulator. Scientific calculator has features of 500 es, 500 ms, 300 es plus, 991 es plus. Calculator keyboard layout same as calculator 300 es plus, 991 ex and es plus. ◉ Graphing calculator 84 plus supports function graph, polar, parametric and implicit function. Graphing calculator 84 can draw tangent, tracing, derivative, root, minute and max. It simulates for graphing caluculator 83 and t1 84, 84 plus. ◉ Integral calculator 991 es plus provide strong calculator to calculate integrate, derivative, differentiation and integration. ◉ This scientific calculator 991ex contains CAS (computer algebra system), which can perform symbolic calculation. ◉ Some another features: math formula, physics formula, unit conversion, theme, font and programming.