Classic Scientific Calculator is a free to use app. With this app you can have quick access to any mathematical function you want. It is one of the few android calculators with complex number equations supportIn Classic Scientific Calculator you have a variety of features such as: All Basic Mathematical Operations. Traditional Algebraic or RPN operation. Fractions support. Mixed and improper fractions. Physical constants table. Scientific, engineering and fixed-point display modes. Binary, octal, and hexadecimal. Degrees, Radian, Gradient Support. Trigonometric operations. Hyperbolic operations. Logarithmic operations. Complex number operations. Solving linear equations. Features memory. Result history. Haptic feedbackIf you find any bug do contact us to fix it.