or

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or $$\vee $% WIDTH=20 HEIGHT=21$

$\includegraphics[height=10mm]{images/or}% WIDTH=48 HEIGHT=45$

Logical or of $x$% WIDTH=17 HEIGHT=16 and $y$% WIDTH=16 HEIGHT=22 , where $$x\le0.5$% WIDTH=103 HEIGHT=27$ means false, and $x>0.5$% WIDTH=103 HEIGHT=24 means true. The output is 1 or 0, depending on the result being true (1) or false (0) respectively.

The operator can be placed on the canvas in two ways:

From the Binary Operations (``binop'') toolbar; or
By typing the letters ``or_'' (the word or, followed by an underscore) on the canvas and then pressing the Enter key. The underscore is needed because ``or'' is a reserved word in C++, the programming language in which Ravel is written.