From: Matthew Kerwin <matthew@...>
Date: 2013-01-25T14:15:09+09:00
Subject: Re: General Ruby syntax questions

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On 25 January 2013 14:57, Scott Price <lists@ruby-forum.com> wrote:

> Thanks Matthew. I have one single question about the first section of
> code. I know it returns the base raised to the exponent, but what does
> the variable "i" stand for? I probably sound stupid asking these things,
> but I have basically no experience coding. I just played with c++ for a
> little while. I was never good.


By convention, in most programming contexts, 'i' is often to count
iterations of a loop.

    for (i = 0; i < number_of_iterations; i++)

... is pretty ubiquitous.  In a nested loop, usually the inner loop uses
'j', and then 'k', etc.

-- 
  Matthew Kerwin, B.Sc (CompSci) (Hons)
  http://matthew.kerwin.net.au/
  ABN: 59-013-727-651

  "You'll never find a programming language that frees
  you from the burden of clarifying your ideas." - xkcd

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<div dir=3D"ltr">On 25 January 2013 14:57, Scott Price <span dir=3D"ltr">&l=
t;<a href=3D"mailto:lists@ruby-forum.com" target=3D"_blank">lists@ruby-foru=
m.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=3D"gma=
il_quote">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Thanks Matthew. I have one single question a=
bout the first section of<br>
code. I know it returns the base raised to the exponent, but what does<br>
the variable &quot;i&quot; stand for? I probably sound stupid asking these =
things,<br>
but I have basically no experience coding. I just played with c++ for a<br>
little while. I was never good.</blockquote><div>=A0</div><div style>By con=
vention, in most programming contexts, &#39;i&#39; is often to count iterat=
ions of a loop.</div><div style><br></div><div style>=A0 =A0 for (i =3D 0; =
i &lt; number_of_iterations; i++)</div>
</div><div class=3D"gmail_extra"><br></div><div class=3D"gmail_extra" style=
>... is pretty ubiquitous. =A0In a nested loop, usually the inner loop uses=
 &#39;j&#39;, and then &#39;k&#39;, etc.</div><div><br></div>-- <br>=A0 Mat=
thew Kerwin, B.Sc (CompSci) (Hons)<br>
=A0 <a href=3D"http://matthew.kerwin.net.au/" target=3D"_blank">http://matt=
hew.kerwin.net.au/</a><br>=A0 ABN: 59-013-727-651<br><br>=A0 &quot;You&#39;=
ll never find a programming language that frees<br>=A0 you from the burden =
of clarifying your ideas.&quot; - xkcd
</div></div>

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