Mark Wickens

ANGLE

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	π ── 180	100 ── 90
1 RAD =	180 ── π	1	200 ── π
1 GRAD =	90 ── 100	π ── 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 30º in the degree mode, sin π÷6 in the radian mode, and sin 100÷30 in the grad mode.