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Scalar variables are named variables holding numeric or string scalars (or both). There are NO types (integer, float, char) of variables. The interpretation of a scalar is always determined by its context and not "type" of variable.
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$cps616_num is a scalar variable representing number of students in CPS 616
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Variables are set by conventional equal sign
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Note statements are ended by semicolons -- not by newlines and # can be used to denote a comment
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$Instructor= "Fox"; # Not really true as Wojtek did all the work
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Comments may appear after statements or on a line on their own. They are terminated by newlines.
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