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	<title>Comments on: Numerical Methods</title>
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	<link>http://blog.arjie.com/2007/10/31/numerical-methods/</link>
	<description>The truth, one post at a time</description>
	<pubDate>Thu, 20 Nov 2008 11:03:21 +0000</pubDate>
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		<title>By: Marc</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-197386</link>
		<dc:creator>Marc</dc:creator>
		<pubDate>Mon, 31 Dec 2007 06:51:00 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-197386</guid>
		<description>Stop bumping up old posts!

My opinion of NM has in fact changed and it's the one Mathematics subject that makes sense only because I took the trouble to understand it.</description>
		<content:encoded><![CDATA[<p>Stop bumping up old posts!</p>
<p>My opinion of NM has in fact changed and it&#8217;s the one Mathematics subject that makes sense only because I took the trouble to understand it.</p>
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		<title>By: roshan.george</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-197375</link>
		<dc:creator>roshan.george</dc:creator>
		<pubDate>Mon, 31 Dec 2007 05:28:50 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-197375</guid>
		<description>Ha ha Karthik. Yes, I guess we're on the same side here.

My mistake over the comment, I should read context the next time :)</description>
		<content:encoded><![CDATA[<p>Ha ha Karthik. Yes, I guess we&#8217;re on the same side here.</p>
<p>My mistake over the comment, I should read context the next time :)</p>
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		<title>By: Karthik</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-197306</link>
		<dc:creator>Karthik</dc:creator>
		<pubDate>Sun, 30 Dec 2007 14:04:33 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-197306</guid>
		<description>George, that was infact Marc's comment :P Where did you say 'random formulas to solve meaningless problems with no relenace to the real world.' ? But it's understandable. This post must have been really old. I just saw 'Math' in the categories and simply had to see it.

You are right about plugging in numbers into formulae and I thought I agreed with that in my earlier comment. It's pointless.It should be taught as a lab or something.

Engineering is even worse. We were never told to reder to proofs. We are simply expected to accept whatever is taught to us. No wonder then that Marc feels the way he does. Our staff are simply pathetic and have no idea of the geometrical meaning of the stuff we do.</description>
		<content:encoded><![CDATA[<p>George, that was infact Marc&#8217;s comment :P Where did you say &#8216;random formulas to solve meaningless problems with no relenace to the real world.&#8217; ? But it&#8217;s understandable. This post must have been really old. I just saw &#8216;Math&#8217; in the categories and simply had to see it.</p>
<p>You are right about plugging in numbers into formulae and I thought I agreed with that in my earlier comment. It&#8217;s pointless.It should be taught as a lab or something.</p>
<p>Engineering is even worse. We were never told to reder to proofs. We are simply expected to accept whatever is taught to us. No wonder then that Marc feels the way he does. Our staff are simply pathetic and have no idea of the geometrical meaning of the stuff we do.</p>
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		<title>By: roshan.george</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-197281</link>
		<dc:creator>roshan.george</dc:creator>
		<pubDate>Sun, 30 Dec 2007 10:28:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-197281</guid>
		<description>&lt;blockquote&gt;As for the ‘random formulas to solve meaningless problems with no relevance to real world.’ you couldn’t be more wrong about it. Myopic vision prevents you from appreciating the beauty of NM.
&lt;/blockquote&gt;

Thanks for the comment Karthik. I was not criticizing NM itself for existing. However, I did not join a Mathematics course to learn how to operate a calculator. 

As for 'random formulae...', my criticism was directed at the fact that it did appear to be random formulae. There is no reason that the formulae should seem &lt;info title="They did. That's my problem."&gt;arbitrary&lt;/info&gt;.  Here I have to give my teacher a little credit: Though she didn't go about very well, she did make an effort to mention the &lt;info title="These are the important parts! Why are they given so much less time than the results themselves?"&gt;proofs&lt;/info&gt;.

It would be interesting to know what exactly one learns by simply plugging numbers into formulae. Also, the whole substituting thing is a bore. Fortunately, I didn't have to keep doing it, with a decent calculator  substituting is trivial and there's little scope for error.

Honestly, the &lt;info title="and the ideas behind them"&gt;proofs&lt;/info&gt; at Wolfram's MathWorld were far more interesting than the formulae themselves. One doesn't need a B.Sc. Mathematics course to learn how to memorize formulae. 

PS: Don't blame me. I really am myopic. -4.5 :)</description>
		<content:encoded><![CDATA[<blockquote><p>As for the ‘random formulas to solve meaningless problems with no relevance to real world.’ you couldn’t be more wrong about it. Myopic vision prevents you from appreciating the beauty of NM.
</p></blockquote>
<p>Thanks for the comment Karthik. I was not criticizing NM itself for existing. However, I did not join a Mathematics course to learn how to operate a calculator. </p>
<p>As for &#8216;random formulae&#8230;&#8217;, my criticism was directed at the fact that it did appear to be random formulae. There is no reason that the formulae should seem <info title="They did. That's my problem.">arbitrary</info>.  Here I have to give my teacher a little credit: Though she didn&#8217;t go about very well, she did make an effort to mention the <info title="These are the important parts! Why are they given so much less time than the results themselves?">proofs</info>.</p>
<p>It would be interesting to know what exactly one learns by simply plugging numbers into formulae. Also, the whole substituting thing is a bore. Fortunately, I didn&#8217;t have to keep doing it, with a decent calculator  substituting is trivial and there&#8217;s little scope for error.</p>
<p>Honestly, the <info title="and the ideas behind them">proofs</info> at Wolfram&#8217;s MathWorld were far more interesting than the formulae themselves. One doesn&#8217;t need a B.Sc. Mathematics course to learn how to memorize formulae. </p>
<p>PS: Don&#8217;t blame me. I really am myopic. -4.5 :)</p>
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		<title>By: Karthik</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-197268</link>
		<dc:creator>Karthik</dc:creator>
		<pubDate>Sun, 30 Dec 2007 07:37:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-197268</guid>
		<description>Whoa, I thought Numerical Methods was only for Engineers. Seems like I was mistaken. I am actually currently working on a numerical methods library. (in programming parlance.)

Numerical methods seems trivially easy. I am actually in love with this paper. Only people who understand modelling/framing the probelm to be solved and it's solution understand the ingenuity of numerical methods.(Often framing the model is more difficult than solving it.)

As a paper for exams I am highly critical of this paper. I mean there is no point in doing 15 iterations manually knowing perfectly well that I will screw some substitution. It's an easy mechanical process of substituting numbers in formulae and that's why we have computers- to crunch numbers.

Numerical methods finds applications in a whole range of fields. As an electrical engineer I used it extensively in Power Systems.

To appreciate the concept of Numerical methods, you should try solving the problems with the conventional methods. Then you will know the beauty of it.

If you thought NM has no practical applications in engineering or otherwise, then it is used right from plotting curves on your monitor (even in Games) to 
Optimising designs in Power systems and other design oriented streams.

Try the book by Gerald and Wheatley if someone is really interested. Gives you an insight into why use numerical methods at all.

As for the 'random formulas to solve meaningless problems with no relevance to real world.' you couldn't be more wrong about it. Myopic vision prevents you from appreciating the beauty of NM. 

Instead of critising the random formulae, we should appreciate them and see if we can devise better methods to get the same thing done. Mostly it's(the formulas) just common sense. If you understood the physical interpretation of the problems,you might be able to see more clearly.</description>
		<content:encoded><![CDATA[<p>Whoa, I thought Numerical Methods was only for Engineers. Seems like I was mistaken. I am actually currently working on a numerical methods library. (in programming parlance.)</p>
<p>Numerical methods seems trivially easy. I am actually in love with this paper. Only people who understand modelling/framing the probelm to be solved and it&#8217;s solution understand the ingenuity of numerical methods.(Often framing the model is more difficult than solving it.)</p>
<p>As a paper for exams I am highly critical of this paper. I mean there is no point in doing 15 iterations manually knowing perfectly well that I will screw some substitution. It&#8217;s an easy mechanical process of substituting numbers in formulae and that&#8217;s why we have computers- to crunch numbers.</p>
<p>Numerical methods finds applications in a whole range of fields. As an electrical engineer I used it extensively in Power Systems.</p>
<p>To appreciate the concept of Numerical methods, you should try solving the problems with the conventional methods. Then you will know the beauty of it.</p>
<p>If you thought NM has no practical applications in engineering or otherwise, then it is used right from plotting curves on your monitor (even in Games) to<br />
Optimising designs in Power systems and other design oriented streams.</p>
<p>Try the book by Gerald and Wheatley if someone is really interested. Gives you an insight into why use numerical methods at all.</p>
<p>As for the &#8216;random formulas to solve meaningless problems with no relevance to real world.&#8217; you couldn&#8217;t be more wrong about it. Myopic vision prevents you from appreciating the beauty of NM. </p>
<p>Instead of critising the random formulae, we should appreciate them and see if we can devise better methods to get the same thing done. Mostly it&#8217;s(the formulas) just common sense. If you understood the physical interpretation of the problems,you might be able to see more clearly.</p>
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		<title>By: roshan.george</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-187584</link>
		<dc:creator>roshan.george</dc:creator>
		<pubDate>Thu, 08 Nov 2007 14:39:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-187584</guid>
		<description>It's a matter of taste, particularly your lack of it.</description>
		<content:encoded><![CDATA[<p>It&#8217;s a matter of taste, particularly your lack of it.</p>
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		<title>By: Marc</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-187582</link>
		<dc:creator>Marc</dc:creator>
		<pubDate>Thu, 08 Nov 2007 14:36:33 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-187582</guid>
		<description>It's not our fault that your idea of beauty is warped.</description>
		<content:encoded><![CDATA[<p>It&#8217;s not our fault that your idea of beauty is warped.</p>
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		<title>By: roshan.george</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-187305</link>
		<dc:creator>roshan.george</dc:creator>
		<pubDate>Tue, 06 Nov 2007 17:09:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-187305</guid>
		<description>It's not my fault you two have no appreciation of beauty.</description>
		<content:encoded><![CDATA[<p>It&#8217;s not my fault you two have no appreciation of beauty.</p>
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		<title>By: Marc</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-187303</link>
		<dc:creator>Marc</dc:creator>
		<pubDate>Tue, 06 Nov 2007 16:44:11 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-187303</guid>
		<description>If Math were lovely/beautiful then Isha and I would agree. Since we don't, it isn't.</description>
		<content:encoded><![CDATA[<p>If Math were lovely/beautiful then Isha and I would agree. Since we don&#8217;t, it isn&#8217;t.</p>
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		<title>By: Isha</title>
		<link>http://blog.arjie.com/2007/10/31/numerical-methods/#comment-187300</link>
		<dc:creator>Isha</dc:creator>
		<pubDate>Tue, 06 Nov 2007 15:57:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.arjie.com/blog/2007/10/31/numerical-methods/#comment-187300</guid>
		<description>Thou art mistaken... One day you shall see the truth: Maths is horrible. Period.</description>
		<content:encoded><![CDATA[<p>Thou art mistaken&#8230; One day you shall see the truth: Maths is horrible. Period.</p>
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