Just one question. Is the Perl interpreter smart enough to know that int($n/$m) should use integer division rather than floating point division?
No.
i.e. would there be any difference in performance betwee int($n/$m) vs. ($n-$r)/$m?
Sorry, you asked to ask two questions. But to save you from having to ask to ask another question, I'll answer it anyway.
Performance should be roughly the same (4 trivial ops in the former, 5 trivial ops in the latter). The latter is better from a numerical methods point of view, no possibility of floating point error.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
