Expressions and Operators
Things to remember
Arithmetic expressions are simple, but watch out
for subtle type conversions. The shorthand
notation may save you a lot of typing.
Comparison takes two numbers and produces a
logical result. Comparisons are usually found
controlling if statements or loops.
Logical connectors allow several comparisons to
be combined into a single test. Lazy evaluation
can improve the efficiency of the program by
reducing the amount of calculation required.