Least-squares spectral element methods are based on two important and successful numerical methods: spectral/hp element methods and least-squares finite element methods. In this respect, least-squares spectral element methods seem very powerful since they combine the generality of finite element met
The method of least squares applied to a hyraulic problem
β Scribed by Mansfield Merriman
- Publisher
- Elsevier Science
- Year
- 1877
- Tongue
- English
- Weight
- 400 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0016-0032
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β¦ Synopsis
In the great hydraulic survey of the Mississippi river, conducted by Humphreys and Abbot, numerous velocity observations with double floats, were taken at different depths below the water surface. The combined results of all these observations are given on page 244 of the second edition of their _Report on the _Physics and Hydraulics of the β’lississippi River, and are as follows : Depth of float Observed velocity in feetl l~emarks. below surface, per second.
Surface.
π SIMILAR VOLUMES
In this article we consiruct a class of functions on a bounded irregular region Rc RZ which are of compact support, smooth and locally polynomials. The basic tool is the use of ordinary B-splines associated with the square containing Cl. This construction is then used for approximating the solution
The linear least squares problem, min x Ax-b 2 , is solved by applying a multisplitting(MS) strategy in which the system matrix is decomposed by columns into p blocks. The b and x vectors are partitioned consistently with the matrix decomposition. The global least squares problem is then replaced by