BIN$
Syntax |
BIN$ (decimal,digits) or BIN$ (decimal [,digits]) (THOR only) |
Location |
Toolkit II, THOR XVI |
This function converts a signed integer decimal number to the equivalent binary number (to a specified number of binary digits ranging from 1 to 32). Negative values are also handled correctly.
Examples
BIN (BIN$ (x,4)) = x
if x is any number between 0 and 15.
(2) A short function to compare two numbers using the mathematical ‘OR’ function. Do note however that the same function already exists on the QL, and the commands
PRINT 100||10 and PRINT _or(100,10) have exactly the same effect, although the BASIC version below does enable you to see what the function actually does:
100 DEFine FuNction _or(x,y)
110 a$=BIN$(x,32): b$=BIN$(y,32)
115 PRINT a$,b$
120 c$=FILL$('0',32)
130 FOR i=1 TO 32
140 IF a$(i)=1 OR b$(i)=1: c$(i)=1
150 END FOR i
155 PRINT c$
160 RETurn BIN(c$)
170 END DEFine _or
THOR XVI NOTE
The THOR XVI version of BIN$ will accept a value of zero for digits {or even the command in the form BIN$(decimal)}. In both of these cases the result is returned in the least number of Binary digits necessary to store the number, for example: PRINT BIN$(10)gives the result 1010.
THOR XVI WARNING
A second parameter of zero may crash some versions of this command other than on v6.41 of the THOR XVI.
CROSS-REFERENCE