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<p>[QUOTE=&quot;andy21us, post: 402718, member: 2452&quot;]I do agree that it is important to know how to calculate formulas and as an Electrician I use them every day. I am also from the old school ways, give me a slide-rule and I can calculate how fast a truck carrying a 4 inch pipe 10 feet long at a 45 degree angle needs to be going so a rain drop can pass through it without hitting the insides, but it is also just as nice to have tools at your disposal that make life a little easyer.[/QUOTE]</p><p><br /></p>

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