ECS 10 Lecture Notes - Lecture 2: Control Character
12 Nov 2017
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## convert canadian dollars to equivalent in us dollars exchange_rate = 0. 80064 canadian_dollars = 1000. 00 us_dollars = canadian_dollars * exchange_rate print (us_dollars) Variable: name for a value where a data is stored and are associated with numeric addresses. (ex: canadian_dollars, us_dollars) Data values are stored in memory locations - more than one location may be used if the data is large. Each memory location stores one byte (or 8 bits) of data. Each bit is a 0 or a 1. Assignment statement: associates a value with a variable. An identifier followed by the assignment operator (=) followed by an expression. Note that = is no longer a test for equality. Expressions: combination of one or more operators and operands that usually performs a calculation. The calculations don"t have to be arithmetic in nature, but they often are. 3 lower operator operation unary plus and minus mult, divide, remainder, int divide add, subtract.
