Find the local maximum and minimum values and saddle points of the function f(x,y) = xy + \frac{8}{x} + \frac{8}{y} Find the local maximum and minimum values and saddle point(s) of the function, f(x, y) = 3e^y(y^2- x^2). Find the loca...
Multivariable linear regression is mainly used to study the relationship between a factor variable and multiple variables, similar to the principle of univariate linear regression. The difference is that there are more influence factors (arguments). In statistics, linear regression equations are the prod...
Although correlation between geographic range and occurrence frequency may account for some of this association, results from multivariable regression analysis suggest that the association between occurrence frequency and extinction risk is largely independent of geographic range. Within local assemblages, ...
(11) were determined using constrained gradient-based nonlinear multivariable optimization techniques available in MATLAB’s Optimization Toolbox [45]. Tables 3 and 4 (located in the appendix) presents a summary of the final fitted parameters for each individual foam specimen, and quality of the ...
Advanced Local Fractional Calculus and Its Applications英文翻译.pdf,Xiao-Jun Yang Advanced Local Fractional Calculus Its Applications World Science Publisher Author Xiao-Jun Yang Department of Mathematics Mechanics China University of Mining Technology X
(n = 505) received Re-RT with IMRT with a median dose of 66 Gy and outcomes were analyzed to generate a multivariable competing-risk model. A nomogram for a 2-year severe late toxicity prediction has been created, which can be integrated into the informed decision-making process of ...
As the PE surface depends on atomic positions and electronic structure, enthalpy is a multivariable functional of many positions. Consequently, the minimal-enthalpy path (MEP) from one LPEM to another refers to a collective atomic motion. Each LPEM corresponds to a stable or metastable polymorph....
Investigation of the changes in the status of soil salinity using multivariable analysis. Rev. Bras. Eng. Agrícola Ambient. 2011, 15, 410–415. [Google Scholar] [CrossRef] Jiménez, L.; Jiménez, W.; Felicito, D.; Fierro, N.; Quichimbo, P.; Sánchez, D.; Capa-Mora, D. ...
to preserve ‘local smoothness’ and the definition of an energy function E ( f ) = 1 2 ∑ i , j w i j · ( f ( x i ) − f ( x j ) ) 2 (25) gives as a result the harmonic property for the minimum energy function calculated from E(f), that is, the value of f...