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# sin

Mathematics Functions

Computes the sine of an angle in radians.

    double sin( double x);

x | An angle expressed in radians.

## Return Values

The sine of the specified angle.

## Example

The following example calculates the sine of 90 degrees using sin.

        #include <math.h>
        double x = 90;
        lr_output_message ("Sine of %lf deg = %lf\n", x, sin(x * PI/180));

    Example: Output:
    Action.c(9): Sine of 90.000000 deg = 1.000000

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