what's a different?..

eem_murat

hi all,

IF (cm1>50) AND (cm2>50) AND (cm3>50) THEN .....,
IF ((cm1>50) AND (cm2>50) AND (cm3>50)) THEN....··this line has·extra ()
you thing is there a different betwen this line?· or·all of them work same?..

and ı wonder that what is the different from (&·---- and)
when ı used "&"·or · " and" they work same in uplines..

and ı write aproximately 300 lines program and it include if..then, do..while.. or lots of another loop . and ı use bs2. you think, bs2 is enough·microcontroller for my program. ı only wonder cycle speed...

·

Zoot

"AND" is a logical comparison (i.e., are both true?) while "&" is a bit-wise comparison. It looks like you mean to use logical comparisons in your example, so I would stick with "AND".

These lines:

IF (cm1>50) AND (cm2>50) AND (cm3>50) THEN .....,
IF ((cm1>50) AND (cm2>50) AND (cm3>50)) THEN....  this line has extra ()

Are functionally equivalent. Pbasic doesn't require the outside parentheses in IF..THEN statements:

IF x = 0 THEN DoSomething

is the same as

IF ( x = 0 ) THEN DoSomething

I often write such phrases WITH the parentheses, though, because I am used to languages like Perl where parentheses are required for conditional statements (in other words, to my eye it looks funny without them). But that's just me.

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When the going gets weird, the weird turn pro. -- HST

Zoot

"AND" is a logical comparison (i.e., are both true?) while "&" is a bit-wise comparison. It looks like you mean to use logical comparisons in your example, so I would stick with "AND".

These lines:

IF (cm1>50) AND (cm2>50) AND (cm3>50) THEN .....,
IF ((cm1>50) AND (cm2>50) AND (cm3>50)) THEN....  this line has extra ()

Are functionally equivalent. Pbasic doesn't require the outside parentheses in IF..THEN statements:

IF x = 0 THEN DoSomething

is the same as

IF ( x = 0 ) THEN DoSomething

I often write such phrases WITH the parentheses, though, because I am used to languages like Perl where parentheses are required for conditional statements (in other words, to my eye it looks funny without them). But that's just me.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
When the going gets weird, the weird turn pro. -- HST