DrDolittle
Joined: 24 Sep 2004
Posts: 169
Helped: 4
Location: Within arm's reach
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 11 Dec 2004 6:11 dc's and dr's |
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Can somebody explain the physical meaning of direction cosines and direction ratios and there relation in the generation of curves whil solving partial differential equations.Please avoid the formula while explaining them.
Regards
drdolittle 
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