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robh
Posts:
5
From:
Arizona
Registered:
6/21/13


Re: Want help in linear algebra
Posted:
Jun 21, 2013 12:55 PM


On 6/20/13 Justin Tsui wrote:
> Can someone tell me why x1+5*x2sqrt(2*x3)=1 is a > linear equation? For I check the definition of a > linear equation:"All variables only to the first > power and do not appear", and in this case the power > of variable x3 is 1/2, not meeting the definition, > but why is this equation still be regarded as a > linear equation? Thanks.
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I would like to see the source information. Suspect a typo: might the righthand parenthesis be misplaced? If so, then perhaps the intended expression was: x1 + 5*x2  sqrt(2)*x3 = 1



