fy your intent (e.g. (-3)^2 = 9).</li>
<li>care must be exercised when using the slash ('/') symbol. The string of characters <var>1/2x</var> is interpreted as (1/2)x. The contrary interpretation should be written explicitly as 1/(2x). Again, the use of parentheses helps clarify the meaning and should be used whenever there is any chance of misinterpretation.</li>
<li>As <samp>--<samp> is the variable decrement operator, use parenthesis to subtract a negative number, e.g, <samp>-4-(-5)</samp>.</li>
</ul>
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