Are the trigonometric functions in degrees or radians?

Functions like sin, cos and tan use radians. To convert degrees to radians, multiply by pi and divide by 180 inside the parentheses.

Why does it show Error?

Error appears when the expression is incomplete or invalid, such as unbalanced parentheses or a missing number. Check your input and try again.

🧮

A calculator with scientific functions.

Loading tool…

Free online scientific calculator with sin, cos, tan, log, ln, square root, square, pi and parentheses. Type an expression and get instant results.

Part of our Calculators collection. Browse all tools.

Are the trigonometric functions in degrees or radians?: Functions like sin, cos and tan use radians. To convert degrees to radians, multiply by pi and divide by 180 inside the parentheses.
Why does it show Error?: Error appears when the expression is incomplete or invalid, such as unbalanced parentheses or a missing number. Check your input and try again.