This library defines basic operation on polynomials, and contains also 3 different roots (zeroes)-finding methods that can handle quite large polynomials (>1000 coefs) Implemented in ANSI C++ Templates. Handles all real and complex floating point types. Html doc is included.
标签： polynomials different operation contains
上传时间： 2013-12-18
上传用户：yan2267246
to caluculate the legendre polynomials
标签： polynomials caluculate legendre the
上传时间： 2014-01-10
上传用户：Avoid98
NTL is a high-performance, portable C++ library providing data structures and algorithms for manipulating signed, arbitrary length integers, and for vectors, matrices, and polynomials over the integers and over finite fields.
标签： high-performance algorithms structures providing
上传时间： 2014-01-05
上传用户：水中浮云
The module LSQ is for unconstrained linear least-squares fitting. It is based upon Applied Statistics algorithm AS 274 (see comments at the start of the module). A planar-rotation algorithm is used to update the QR- factorization. This makes it suitable for updating regressions as more data become available. The module contains a test for singularities which is simpler and quicker than calculating the singular-value decomposition. An important feature of the algorithm is that it does not square the condition number. The matrix X X is not formed. Hence it is suitable for ill- conditioned problems, such as fitting polynomials. By taking advantage of the MODULE facility, it has been possible to remove many of the arguments to routines. Apart from the new function VARPRD, and a back-substitution routine BKSUB2 which it calls, the routines behave as in AS 274.
标签： least-squares unconstrained Statisti Applied
上传时间： 2015-05-14
上传用户：aig85
Math.NET开源数学库 C#实现 具体功能: - A linear algebra package, see MathNet.Numerics.LinearAlgebra. - A sparse linear algebra package, see MathNet.Numerics.LinearAlgebra.Sparse. - Non-uniform random generators, see MathNet.Numerics.Generators. - Distribution fonctions, see MathNet.Numerics.Distributions. - Statistical accumulator, see MathNet.Numerics.Statistics. - Fourier transformations, see MathNet.Numerics.Transformations. - Miscellaneous utilies (polynomials, rationals, collections).
标签： LinearAlgebra Numerics MathNet algebra
上传时间： 2015-07-23
上传用户：思琦琦
simulating a convolutional encoder allows the user to input a source code to be encoded and also input the values of the generator polynomials. It outputs the encoded data bits, where 1/n is the code rate
标签： convolutional simulating encoder encoded
上传时间： 2013-12-21
上传用户：253189838
多项式快速模板匹配的经典文章，推荐！《Fast Template Matching With polynomials》
上传时间： 2013-12-16
上传用户：stewart·
多项式拟合的MATLAB工具。只要具有以下几个函数 POLYFITN - A general n-dimensional polynomial fitting tool POLYVALN - An evaluation tool for polynomials produced by polyfitn POLYN2SYMPOLY - A conversion tool to generate a sympoly from the results of polyfitn POLYN2SYM - A conversion tool to generate a symbolic toolbox object from the results of polyfitn
标签： n-dimensional polynomial POLYFITN POLYVALN
上传时间： 2014-11-29
上传用户：s363994250
密码学界牛人Victor Shoup用C++编写数论类库。 NTL is a high-performance, portable C++ library providing data structures and algorithms for arbitrary length integers for vectors, matrices, and polynomials over the integers and over finite fields and for arbitrary precision floating point arithmetic. NTL provides high quality implementations of state-of-the-art algorithms for: * arbitrary length integer arithmetic and arbitrary precision floating point arithmetic * polynomial arithmetic over the integers and finite fields including basic arithmetic, polynomial factorization, irreducibility testing, computation of minimal polynomials, traces, norms, and more * lattice basis reduction, including very robust and fast implementations of Schnorr-Euchner, block Korkin-Zolotarev reduction, and the new Schnorr-Horner pruning heuristic for block Korkin-Zolotarev * basic linear algebra over the integers, finite fields, and arbitrary precision floating point numbers.
标签： high-performance providing portable library
上传时间： 2014-01-04
上传用户：exxxds
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
标签： 高精度格式
上传时间： 2016-01-13
上传用户：ccsdcczd
