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OPTION ANGLE ☆☆☆
`OPTION ANGLE RADIANS`
lets the supplied trigonometric functions use radian measure.
`OPTION ANGLE DEGREES`
lets the supplied trigonometric functions use degree measure.
If none of the above is written, the unit of angles is assumed to be radians.
The scope of an OPTION statement is the program unit that contains it.
Thus OPTION ANGLE statement must be written on every program unit which uses trigonometric functions.
An OPTION statement is a declarative statement, which is not an object of the control .