About Scientific Calculator & History Tape
Perform complex algebraic and scientific calculations with high numerical precision. Features trigonometric functions (sin, cos, tan), Radian/Degree toggle, logarithms (log, ln), exponents ($x^y$), square roots, factorials, and an interactive history tape.
Key Capabilities & Features
- Trigonometric functions (sin, cos, tan) with DEG/RAD mode switcher
- Logarithms (log10, natural ln) and Euler number constant (e)
- Powers (x², xʸ), square roots (√x), and factorials (n!)
- Reciprocal (1/x), percentage (%), and sign negation (±)
- Interactive history tape allowing 1-click restore of previous answers
How to Use Scientific Calculator & History Tape
1
Input Formula
Use the keypad or your physical keyboard to enter numbers and functions.
2
Toggle Angle Mode
Switch between DEG (Degrees) and RAD (Radians) for trigonometry.
3
View Result & History
Press = to calculate and view the result in your history tape.
Privacy & In-Browser Execution Guarantee
All mathematical evaluations run locally on your device CPU.
Frequently Asked Questions
What is the difference between DEG and RAD modes?
Degree mode measures angles from 0° to 360°, while Radian mode measures angles based on mathematical circle circumference (2π radians = 360°).
Related Tools in this Suite
Compound Interest Calculator
Future value investment calculator with periodic contributions and Rule of 72
%
Percentage & Margin Calculator
Calculate percentages, percentage change, profit margins, and markups instantly
Universal Unit Converter
Convert measurements for Length, Weight, Temperature, Data Storage, Speed & Area