Tandy 1000 - Page 314

Basic
S GN( number)
Determines number’s sign. If number is a negative number, SGN
returns
-1. If number is a positive number, SGN returns 1. If number
is zero, SGN returns 0.
PRINT SGN(-55) Y=SGN(A * B)
SHELL [command]
Advanced Statement. Loads and executes another program (.EXE
or .COW as a child process to the original program. After the child
process ends, control returns to the
BASIC program at the state-
ment following the SHELL statement.
Command is a string expression containing the name of the program
you want to run.
SHELL CENTER1
SIN(number)
Returns the sine of number. Number must be in radians.
PRINT SIN(7.961 S=SIN(T)
SOUND tone,duration[ ,[volume][ ,[voice]]]
SOUND ON
SOUND OFF
Generates a sound with the tone and duration specified. While a
SOUND statement is producing sound, the program continues to
execute.
Tone is an integer in the range 1 to 1023, indicating the frequency
in Hertz.
tone = CINT (3579545/32 *frequency)
Note Frequency
Middle C 523.25
D 587.33
E 659.26
F 698.46
Note Frequency
G 783.99
A 880.00
B 987.77
C 1046.50
Tundy 1000
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