What angle unit does the Scientific Calculator use by default?

It uses degrees by default, so sin(30) is calculated as 30 degrees; you can switch to radians.

Which expression syntax is supported?

It supports parentheses, powers, sin/cos/tan, log, ln, sqrt, pi and e.

Local calculator for trigonometry, logarithms, parentheses and powers

Runs locally in your browser; input is never uploaded

Calculators & Converters

ExpressionAngle unit

Enter an expression, choose degree or radian mode, then run to see the result.

1.
What angle unit does the Scientific Calculator use by default?
It uses degrees by default, so sin(30) is calculated as 30 degrees; you can switch to radians.
2.
Which expression syntax is supported?
It supports parentheses, powers, sin/cos/tan, log, ln, sqrt, pi and e.