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Abstract:In this paper we summary mainly several kind of methods about conditional extremum of function of several variables,this topic is the important constituent part;and discuss the applications of some problems about the proof of inequality,physics,production and market etc..
In our paper we study mainly several kind of methods about conditional extremum of function of several variables,such as direct substitution method,Lagrange multiplier method,Cauchy inequality,gradient method,numbers and figures  combined method etc.;and introduced mainly total differentiation and second partial derivative,i.e. Hesse matrix method etc. about Lagrange multiplier method and in order to reference and use for reference in solving corresponding problems,and find  the methods of solving problems faster and more precise.
Key words:Lagrange multiplier method,Cauchy inequality,extremum,applications.
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71Â¥2016-04-12 11:50:24
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https://muchong.com/bbs/viewthread.php?tid=10234984&pid=2#pid2#opennewwindow
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We tested the laser damage threshold of crystals, analysised the reason of high damage threshold.
And obtained X crystals of high quality, structured a firm foundation for the research of nonlinear optical properties and device applications.
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https://muchong.com/bbs/viewthread.php?tid=10246074
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The model established has the advantage that is faster in the face of computation speed and is higher in the face of prediction accuracy in comparison with the model of theoretic computation and the model of BP neural network.
At last the validity and practical applicability of the model was verified by specific example.
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75Â¥2016-04-24 08:15:37
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The experience gained through the development of Shenzhen's four master plans has increased awareness of the benefits for integrating SEA as a planning tool and achieving a more sustainable pattern of development.
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The paper has been sent back to your queue to include the below 3 ethical statements in your paper before the reference section and re-submit the paper.
¡¤         Disclosure of potential conflicts of interest
¡¤         Research involving Human Participants and/or Animals
¡¤         Informed consent
Thank you very much.
Best regards,
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