What units is the angle in?

Degrees. Enter e.g. 30, 45, 90.

When is tan undefined?

Tan is undefined at 90° and 270° (and equivalent angles).

Enter an angle in degrees to get sin, cos, and tan values.

Angle (degrees)

What units is the angle in?: Degrees. Enter e.g. 30, 45, 90.
When is tan undefined?: Tan is undefined at 90° and 270° (and equivalent angles).

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Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.

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Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).

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