Scientific Calculator

Calculate arithmetic, parentheses, powers, roots, trigonometric functions, logarithms, constants, and expression history.

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Keyboard supported - Enter to evaluate, Escape to clear

History

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Methodology and limitations

Last reviewed:

Methodology

Evaluates arithmetic expressions with standard operator precedence, trigonometric functions (radians), logarithms, and constants.

Limitations

Floating-point rounding may produce minor precision differences versus pen-and-paper calculation.

How to Use the Scientific Calculator

Calculate arithmetic, parentheses, powers, roots, trigonometric functions, logarithms, constants, and expression history.

Method used

The calculator evaluates a typed or button-built expression using standard operator precedence, supported constants, and supported math functions.

Expression result = evaluated arithmetic expression with supported functions

Practical example

Enter an expression such as sqrt(144) + 3^2 to calculate the square root, exponent, and final sum.

  • Numbers and decimal values
  • Operators such as +, -, x, divide, and ^
  • Functions such as sqrt, sin, cos, tan, log, ln, and abs

The result panel shows the evaluated answer and keeps recent calculations in history.

Assumptions

  • Expressions must use supported operators and functions.
  • The calculator follows the expression evaluator's operator precedence.
  • Angle-unit behavior should be checked against your class or calculator-mode requirement when using trig functions.

What this includes

  • Arithmetic, parentheses, powers, roots, constants, trigonometric functions, logarithms, keyboard input, and history.

What this excludes

  • Graphing, symbolic algebra, calculus solving, equation systems, matrices, and unit conversion.

Frequently Asked Questions

What can a scientific calculator do?

It handles standard arithmetic plus functions such as powers, square roots, trigonometry, logarithms, parentheses, pi, and e.

Are trig functions calculated in degrees or radians?

The calculator follows the behavior of the underlying expression evaluator. Check the result against your class or calculator-mode requirement when angle units matter.

Can I use keyboard input?

Yes. Number keys, operators, Enter, Backspace, and Escape work for common calculator actions when the calculator has focus.