Mark Wickens

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ANGLE

[All Models]

Purpose

Specifies the angle unit.

Format

ANGLE   angle specification
         └───────┬────────┘
         Numeric expression

Example

ANGLE 0

Parameters

angle specification: Numeric expression truncated to an integer in the range 0 <= angle specification < 3

Explanation

1. The angle units for the trigonometric function can be specified using the values 0, 1, and 2.
   • 0: DEG (degrees)
   • 1: RAD (radians)
   • 2: GRAD (grads)
2. The relationship between the angle units are as follows:

Angle Unit	DEG	RAD	GRAD
1 DEG =	1	pi/180	100/90
1 RAD =	180/pi	1	200/pi
1 GRAD =	90/100	pi/200	1

1. ANGLE 0 is set whenever ALL RESET is executed.
2. The angle unit can also be specified using the MODE key.

Sample Programs

10  ANGLE 0 'DEGREES
20  PRINT SIN 30;
30  ANGLE 1 'RADIAN
40  PRINT SIN (PI/6);
50  ANGLE 2 'GRAD
60  PRINT SIN(100/3)

Calculates and displays sin 30 degrees in the degree mode, sin pi/6 in the radian mode, and sin 100/30 in the grad mode.