These two pages are a very brief summary of some of the
topics from basic mathematics that you should
already be familiar with from your prerequisite math and programming courses.
Working knowledge of these
topics will serve you well in this class. Don’t just memorize these facts; be
prepared to apply them.
• Commonly , the modulo operator (%) gives the remainder of an integer division.
• More generally: Values b and r are said to be congruent modulo m (written b ≡
r(modm)) if the result
of (b − r)/m is an integer. b is called the base, r is the residue or remainder,
and m is the modulus.
• A related operator: We say that x divides y (written x | y) if y%x = 0.
• Summation: In ,∑ is the Greek letter
(capital) sigma; i is the index of summation, or just index ; a
is the lower limit ; b is the upper limit ; and c is the sequence, usually in
terms of the index .
• Product: In , the nomenclature is the same,
except that the symbol is the capital letter pi
the index is called the index of multiplication.
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