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| '''~''' a.k.a. '''not''' is usually used in conjunction with an [[If]] [[statement]].
| | #Redirect:[[~]] |
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| Don't use NOT, use ~ because it will work everywhere whereas NOT will only work in If statements
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| ----
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| 1) The tilde character is "not" in BR: '~'
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| If ~1 then print "X" else print "Y"
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| Y
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| In my testing, "NOT" only works in an IF statement or a PRINT statement. Whereas "~" works everywhere.
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| let X=1
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| let Y=NOT X ! Gives an error
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| let Y=~X ! Sets y to 0
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| print NOT Y ! prints 1
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| print ~X ! prints 0
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| 2) Keep in mind that you can use the unary operator "NOT" in many more places then in an IF-THEN statement. So it couldn't be a parameter of the IF statement.
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| You can do a comparison and assign the results to a boolean variable (in BR thats just a regular numeric variable that you're calling a boolean variable).
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| let A=5
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| let B=7
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| let TEST = ~(A>B)
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| IF TEST THEN PRINT "X" ELSE PRINT "Y"
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| X
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| You can also print the results of a conditional statement:
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| PRINT NOT (A>B)
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| 1
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| PRINT ~(A>B)
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| 1
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| So, in my testing I have discovered two important things:
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| 1) NOT and ~ do the same thing. But NOT works in only IF and PRINT statements whereas "~" works for IF, PRINT, and LET statements, as well as Function Call Parameters, and many more places.
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| 2) There are lots of different places you can use NOT (~) and all of them are useful.
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| <noinclude>
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| [[Category:Operators]]
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| [[Category:Logical Operators]]
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| </noinclude>
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