SIN( )

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Returns the trigonometric sine of an angle.

Syntax

SIN(<expN>)

<expN>

The size of the angle in radians. To convert an angle’s degree value to radians, use DTOR( ). For example, to find the sine of a 30-degree angle, use SIN(DTOR(30)).

Description

SIN( ) calculates the ratio between the side opposite an angle and the hypotenuse in a right triangle. SIN( ) returns a number from –1 to +1. SIN( ) returns zero when <expN> is zero, pi, or 2pi radians.

Use SET DECIMALS to set the number of decimal places SIN( ) displays.

The cosecant of an angle is the reciprocal of the sine of the angle. To return the cosecant of an angle, use 1/SIN( ).