Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Ke.ywords
cos Function
COS( num ber)
Returns the cosine of number.
COS returns the angle (in radians) whose sine is number.
Number
must be given in radians. If number is in degrees, you
can convert it
to radians by using COS (number * PI/180), where
PI equals 3.141593.
BASIC always returns the result as a single precision number
unless you specified the
/D switch when starting up BASIC.
Examples
PRINT COS(5.8) - COS(85 * .42)
prints the arithmetic (not trigonometric) difference of the 2
cosines.
Y = COSCX .0174533)
stores in Y the cosine of X, if X is an angle in degrees.
128

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200