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### B.1.21 TrigDegrees

Standard trigonometric functions with angles in degrees.

`sinDeg( theta )`
Sine of an angle.

• Parameters:
• `theta` (floating point): an angle, in degrees
• Return value
• (floating point): the sine of the argument

`cosDeg( theta )`
Cosine of an angle.

• Parameters:
• `theta` (floating point): an angle, in degrees
• Return value
• (floating point): the cosine of the argument

`tanDeg( theta )`
Tangent of an angle.

• Parameters:
• `theta` (floating point): an angle, in degrees
• Return value
• (floating point): the tangent of the argument.

`asinDeg( x )`
Arc sine. The result is in the range of -90 through 90.

• Parameters:
• `x` (floating point): the value whose arc sine is to be returned.
• Return value
• (floating point): the arc sine of the argument in degrees

`acosDeg( x )`
Arc cosine. The result is in the range of 0.0 through 180.

• Parameters:
• `x` (floating point): the value whose arc cosine is to be returned.
• Return value
• (floating point): the arc cosine of the argument in degrees

`atanDeg( x )`
Arc tangent. The result is in the range of -90 through 90.

• Parameters:
• `x` (floating point): the value whose arc tangent is to be returned.
• Return value
• (floating point): the arc tangent of the argument in degrees

`atan2Deg( y, x )`
Converts rectangular coordinates (`x`,`y`) to polar (`r`,`theta`). This method computes the phase `theta` by computing an arc tangent of `y/x` in the range of -180 to 180.

• Parameters:
• `y` (floating point): the ordinate coordinate
• `x` (floating point): the abscissa coordinate
• Return value
• (floating point): the `theta` component in degrees of the point (`r`,`theta`) in polar coordinates that corresponds to the point (`x`,`y`) in Cartesian coordinates.

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