GlenCalc

Scientific calculator

Type an expression the way you would write it, for example 2(3 + 4)^2 or sin(30) + log(1000). The answer updates as you type, and the text box works like any other, with a normal cursor.

Operators: + − × ÷ ^ ! %. Functions: sin cos tan asin acos atan sinh cosh tanh sqrt cbrt ln log log2 abs exp floor ceil round. Constants: pi (π), e.

Your answer

=13.227922061358
Scientific notation1.3227922061e+1
As a fraction (approx.)513918/38851

Worked out in your browser. Nothing you type is sent to a server.

How we worked it out

Updated as you change the numbers.

  1. Evaluated with the usual order: brackets, powers (right to left), multiplication and division, then addition and subtraction. Angles in degrees.

Method and assumptions

The expression is parsed and evaluated in your browser with standard precedence. A number next to a bracket or a name multiplies (2π, 3(4 + 1)). log is base 10 and ln is natural; x! is the factorial, extended to non-integers by the gamma function. Results use double-precision arithmetic, accurate to about 15 significant digits.

Questions

Is −3^2 equal to 9 or −9?

−9. Powers are evaluated before the minus sign, as in standard math notation. Write (−3)^2 for 9.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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