# Arduino - Sin

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## sin(rad)

#### Description

Calculates the sine of an angle (in radians). The result will be between -1 and 1.

#### Parameters

rad: the angle in radians (float)

#### Returns

the sine of the angle (double)

#### Note

Serial.print() and Serial.println() do not currently support printing floats.

#### See also

- cos()
- tan()
- float
- double

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