Full-featured scientific calculator with trigonometry, logarithms, powers, and history log.
Use the on-screen buttons or your keyboard to enter expressions. Choose DEG or RAD at the top of the display to set the angle unit for sin, cos, tan and their inverses.
sqrt(2) or log10(1000)Supported functions: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, log10(x), log(x) (natural log), log2(x), exp(x), sqrt(x), cbrt(x), abs(x), n!, x^y
Constants: π ≈ 3.14159…, e ≈ 2.71828…
Uses mathjs in a restricted sandbox (no eval) with full operator precedence. Results are shown to 12 significant figures.
Yes — use ( and ) to group expressions just like a physical scientific calculator.
Either. Use the DEG / RAD switch at the top of the display. In DEG mode sin(30) = 0.5 and inverse functions return degrees; in RAD mode sin(π/6) = 0.5.
Yes — you can chain complex expressions like sin(45)^2 + cos(45)^2, which equals 1.
This calculator follows standard mathematical order of operations (PEMDAS/BODMAS): Parentheses first, then Exponents, then Multiplication and Division (left to right), then Addition and Subtraction (left to right). Understanding this order is essential for getting correct results in complex expressions.
Did you know?
Texas Instruments' TI-84 calculator, introduced in 2004, still costs around $100 despite having less computing power than a basic smartphone. The calculator market persists because schools require dedicated calculators for standardized tests.
The first mechanical calculator was the Pascaline, built by Blaise Pascal in 1642 when he was just 19 years old. Electronic scientific calculators emerged in the 1970s with the HP-35 (1972), the first handheld calculator to perform trigonometric and logarithmic functions, priced at $395 (about $2,900 today).
The number π (pi) has been calculated to over 100 trillion decimal places as of 2024 using supercomputers.
The equals sign (=) was invented by Welsh mathematician Robert Recorde in 1557 because he was tired of writing "is equal to."
Euler's identity e^(iπ) + 1 = 0 is often called "the most beautiful equation in mathematics" as it connects five fundamental constants.
The word "algorithm" derives from the name of 9th-century Persian mathematician al-Khwarizmi.