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Academic / Student Tools / Scientific Calculator
Tool 461 · safe scientific workbench

Scientific power without a black-box calculator.

Type natural mathematical expressions or use the keypad. Get trig modes, combinatorics, constants, variables, memory, factorials, percentages, precision control, scientific or engineering notation and a reusable calculation tape — all offline, with no eval() and no cloud dependency.

Safe expression parserDEG / RAD / GRADVariables + memoryEngineering notation

Scientific workbench

Enter expressions such as sin(30)^2 + cos(30)^2 or nCr(52,5).

Ready.
0
Ans = 0
Your calculation tape is empty.

Core syntax

+ − * / ^, parentheses, postfix ! and %.

Implicit multiplication: 2pi, 3(4+5), 2sin(30).

Trig

sin cos tan asin acos atan

Uses your DEG / RAD / GRAD setting.

Logs & roots

ln(x), log(x), log(x,b), sqrt, cbrt, root(x,n).

Discrete math

nCr(n,r), nPr(n,r), gcd(a,b,...), lcm(a,b,...), factorial.

Constants

pi, e, tau, phi, ans, and variables A–F.

Keyboard

Enter calculate · Esc clear · Ctrl/Cmd + K focus expression.

Numerical note: like most browser calculators, results use IEEE-754 floating-point arithmetic. Very large factorials, ill-conditioned expressions and values near trigonometric singularities can lose precision.