Tutoring computer programming, some issues that seem negligible become very important to consider.  The tutor discusses the status of variables.   In computer programming blogs, as well as in some books, you’ll often see the construction if($variable) { these instructions; …

Perl: $variable status: the “if” test Read more »

Compound interest is probably studied more in high school than it was twenty years ago.  The tutor amends the perl program from September 10 to cover the general case of compound interest. Back in my September 10 article, I offered …

Perl: A compound interest calculator, Part II Read more »