Results 21 to 30 of about 30,661 (276)
Sizing and Least-Change Secant Methods [PDF]
This paper studies a new secant update for nonlinear minimization. This update is based on a least-change principle involving the matrix trace: Consequently, all eigenvalues are taken into account in the determination of the update. In addition to motivation and analysis, computational results/comparisons are provided.
Dennis, J. E. jun., Wolkowicz, Henry
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A non-Secant quasi-Newton Method for Unconstrained Nonlinear Optimization
The Secant equation has long been the foundation of quasi-Newton methods, as updated Hessian approximations satisfy the equation with each iteration. Several publications have lately focused on modified versions of the Secant relation, with promising ...
Issam A.R. Moghrabi
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Study on the size effect of the secant modulus of rocks containing multiple parallel joints
The secant modulus of the rock reflects the stiffness of the rock and the ability to resist deformation. There are significant differences in the secant modulus of the rock due to the different numbers of joints in the rock and the change in rock size ...
Jing Zhang +7 more
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COMPARATIVE STUDY OF NONLINEAR ROOT FINDING USING IMPROVISED SECANT METHODS
he nonlinear transcendental or algebraic equation problem is one of the important research areas in numerical analysis, and the iterative methods are playing an important role to find approximate solutions.
Nurul Nabilah Rosli +3 more
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Moment Identifiability of Homoscedastic Gaussian Mixtures [PDF]
We consider the problem of identifying a mixture of Gaussian distributions with same unknown covariance matrix by their sequence of moments up to certain order. Our approach rests on studying the moment varieties obtained by taking special secants to the
Agostini, Daniele +2 more
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Least-Change Sparse Secant Update Methods with Inaccurate Secant Conditions [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dennis, J. E. jun., Walker, Homer F.
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Homotopy Analysis-Based Hybrid Genetic Algorithm and Secant Method to Solve IVP and Higher-Order BVP
The analytical solution of the Initial Value Problem (IVP) and the Boundary Value Problem (BVP) is an essential issue in numerous engineering applications. However, it cannot usually be realized by simple methods.
Hala A. Omar
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ObjectiveIn order to reduce the switching frequency of an intermediate frequency inverter power supply, ensure the quality of the output waveform and realize digitalization easily, a SPWM sampling method based on a tangent-secant midpoint approximation ...
Weibo LI +4 more
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Novel hybrid algorithms for root determining using advantages of open methods and bracketing methods
There are two numerical approaches for root determining methods: open methods and bracketing methods. Open methods usually converge much more quickly than the bracketing methods, but they may diverge in some cases.
Elsayed Badr +2 more
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There are some techniques in calculating the reguler-changed flows, for instance the equation of standard phase that uses trial and error calculations . Some method then is developed from Newton-Raphson method, namely SECANT method.
Pribadi Pribadi
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