A comprehensive, free scientific calculator with advanced mathematical functions including trigonometry, logarithms, exponents, and more. Perfect for students, engineers, and professionals. No Signup Required.
The first electronic scientific calculator, the Hewlett-Packard HP-9100A, was released in 1968 and weighed a staggering 40 pounds. Before electronic calculators, engineers and scientists relied on slide rules for complex calculations, which remained in widespread use until the 1970s. Interestingly, the Apollo moon missions were navigated using slide rules and mechanical calculators, as electronic calculators weren't yet reliable enough. Today's smartphone calculator has over a million times more computing power than the guidance computers used for the entire Apollo program.
Modern scientific calculators use Reverse Polish Notation (RPN) internally to evaluate complex expressions, even when displaying traditional infix notation to users. This stack-based approach eliminates the need for parentheses and simplifies the evaluation of nested operations. When calculating trigonometric functions, calculators convert angles to radians, then use Taylor series approximations or CORDIC (Coordinate Rotation Digital Computer) algorithms that rely on iterative vector rotations rather than direct multiplication. These methods achieve high precision while minimizing computational resources.
Our Scientific Calculator allows you to perform a wide range of mathematical operations including basic arithmetic, trigonometric functions, logarithms, exponents, roots, and more. It's designed for students, engineers, scientists, and anyone who needs to perform complex calculations.
Simply click on the trigonometric function you need (sin, cos, tan, etc.), enter the angle value, and press equals. You can toggle between degrees and radians using the dedicated button.
Yes! Our calculator supports scientific notation for very large or small numbers. Use the EXP or ×10^x button to enter numbers in scientific notation.
Yes, the calculator follows the standard mathematical order of operations (PEMDAS/BODMAS): Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.
Yes, the calculator includes both log (base 10) and ln (natural logarithm, base e) functions, as well as the ability to calculate logarithms with custom bases.
Yes, we take data security seriously. All calculations are processed locally in your browser and never sent to our servers. This ensures complete privacy and security of your information.
Yes, the calculator includes memory functions (M+, M-, MR, MC) that allow you to store and recall values during complex calculations.