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2D All the way! / another variable problem

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glint
22
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Joined: 9th Feb 2004
Location: the Synth
Posted: 25th May 2004 06:20
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This problem has been particularly troublesome.

Try this short program. It will not print anything when run on my computer (even if the "not" is removed). Does anyone know what is going on?

Sorry, I realize this isn't exactly 2-D material, but I don't think they would want me posting this in the Bugs forum.

Here's the code :

x=100
y=-20
if x/abs(x)=y/abs(y) then print "x"
wait key

(Is there a command that will find the sign of a variable? It would be much more streamlined than this).
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M00NSHiNE
22
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Joined: 4th Aug 2003
Location: England, UK
Posted: 25th May 2004 16:26
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try:

x=100
y=-20
xequals=x/abs(x)
yequals=y/abs(y)
if xequals=yequals then print "x"
wait key

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BigDan256
22
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Joined: 29th Oct 2003
Location: NSW, Australia
Posted: 27th May 2004 10:46
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try:

x=100
y=-20
if (x/y)>0 then print "x"
wait key

that gets rid of the abs() function which I think has an issue in dbc, but you have to make sure y is never 0 or you'll get an error

so the truth table will end up (x/y>0):
y<0 y=0 y>0
x<0 True Error False
x=0 False Error False
x>0 False Error True

compared to your original truth table (x/|x|=y/|y|):
y<0 y=0 y>0
x<0 True Error False
x=0 Error Error Error
x>0 False Error True
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