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Description: 稀疏非对称矩阵的ICCG法FORTRAN源程序-Sparse non-symmetric matrix of the ICCG method FORTRAN source code
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Size: 22154 |
Author: testsb |
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Description: 解稀疏对称方程组的ICCG法fortran源程序
有算例，希望对你有帮助-Solution of sparse symmetric linear ICCG method source fortran examples there, and they hope to help you
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Size: 722944 |
Author: wangsong |
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Description: 这是用于线性方程组求解的ILUK预处理算法的实现。在VC++编译通过。矩阵采用压缩稀疏行格式存储（CSR），采用如下结构存储：struct Distmatrix {double **ma int **ja,dimension,*nnzrow } 很容易移植到自己定义数值计算软件包中。经本人测试计算效率比Fortran写的高很多（比如与Sparskit2比较）。-This is used for solving linear equations ILUK preconditioning algorithm. In VC++ Compiled through. Matrix using compressed sparse row storage format (CSR), using the following structure of memory: struct Distmatrix (double** ma int** ja, dimension,* nnzrow) be easily transplanted to their own definition of numerical computation package. I tested by calculating the efficiency ratio is much higher Fortran write (for example, compared with Sparskit2).
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Size: 537600 |
Author: 张德柱 |
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Description: 这是用于线性方程组求解的ILUT预处理算法的实现。在VC++编译通过。矩阵采用压缩稀疏行格式存储（CSR） 很容易移植到自己定义数值计算软件包中。经本人测试计算效率比Fortran写的高很多（比如与Sparskit2比较）。-This is used for solving linear equations ILUT preconditioning algorithm. In VC++ Compiled through. Matrix using compressed sparse row storage format (CSR) is very easy to transplant to their own definition of numerical computation package. I tested by calculating the efficiency ratio is much higher Fortran write (for example, compared with Sparskit2).
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Size: 560128 |
Author: 张德柱 |
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Description: 这是Yousef Saad编写的矩阵运算的Fortran软件包（A basic tool-kit for sparse matrix computations (Version 2),包含常见的排序，预处理(ILU分解等)，Krylov子空间迭代法，以及有限差分等方法得到的算例等。有不少很实用的子程序（比如稀疏矩阵相加、相乘等等，可以学习专家的设计哟！）。极力向学习大型线性方程组数值解的人推荐（不足之处就是Fortran实现，本人觉得还是C语言好）。-Yousef Saad This is prepared in the Fortran matrix calculation package (A basic tool-kit for sparse matrix computations (Version 2), contains the common sort, preconditioning (ILU decomposition, etc.), Krylov subspace iteration method, as well as limited differential and other methods such as numerical example. there are many very practical subprogram (such as sparse matrix add, multiply, etc., can learn from experts in the design yo!). hard to study large-scale numerical solution of linear equations of the people Recommended (Fortran is inadequate to achieve, I feel good or C language).
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Size: 1157120 |
Author: 张德柱 |
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Description: 稀疏非对称矩阵的ICCG法FORTRAN源程序-Sparse non-symmetric matrix of the ICCG method FORTRAN source code
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Size: 21504 |
Author: 邱 |
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Description: SuperLU is a general purpose library for the direct solution of large, sparse, nonsymmetric systems of linear equations on high performance machines. The library is written in C and is callable from either C or Fortran. The library routines will perform an LU decomposition with partial pivoting and triangular system solves through forward and back substitution. The LU factorization routines can handle non-square matrices but the triangular solves are performed only for square matrices. The matrix columns may be preordered (before factorization) either through library or user supplied routines. This preordering for sparsity is completely separate from the factorization. Working precision iterative refinement subroutines are provided for improved backward stability. Routines are also provided to equilibrate the system, estimate the condition number, calculate the relative backward error, and estimate error bounds for the refined solutions. -SuperLU is a general purpose library for the direct solution of large, sparse, nonsymmetric systems of linear equations on high performance machines. The library is written in C and is callable from either C or
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Size: 1955840 |
Author: anfangde |
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Description: 此程序包包含很多求解大型稀疏方程组的代码，在偏微分上有很大用处。-This package contains a lot of equations for solving large sparse code, in the partial differential there is a great use.
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Size: 157696 |
Author: wangzhen |
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Description: 稀疏矩阵存储格式转换，从带状矩阵(BND)到压缩稀疏行(CSR) .f90格式-BNDCSR converts Banded Linpack format to Compressed Sparse Row format.
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Size: 1024 |
Author: bndcsr |
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Description: 采用CG法求解稀疏对称非奇异矩阵得到的线性系统Ax=b-Implementation of a conjugate-gradient type method for solving sparse linear equations:
Solve Ax = b or (A- sI)x = b.
The matrix A- sI must be symmetric and nonsingular, but it may be definite or indefinite. The scalar s is a shifting parameter-- it may be any number. The method is based on Lanczos tridiagonalization. You may provide a preconditioner, but it must be positive definite.
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Size: 12288 |
Author: aaq |
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Description: !
2 ! HOMPACK90 is a suite of FORTRAN 90 subroutines for solving nonlinear
3 ! systems of equations by homotopy methods. There are subroutines for
4 ! fixed point, zero finding, and general homotopy curve tracking problems,
5 ! utilizing both dense and sparse Jacobian matrices, and implementing
6 ! three different algorithms: ODE-based, normal flow, and augmented
7 ! Jacobian. The (driver) subroutines called by the user are given in the
8 ! table below, and are well documented internally. The user need not
9 ! be concerned with any other subroutines in HOMPACK90.
-!
2 ! HOMPACK90 is a suite of FORTRAN 90 subroutines for solving nonlinear
3 ! systems of equations by homotopy methods. There are subroutines for
4 ! fixed point, zero finding, and general homotopy curve tracking problems,
5 ! utilizing both dense and sparse Jacobian matrices, and implementing
6 ! three different algorithms: ODE-based, normal flow, and augmented
7 ! Jacobian. The (driver) subroutines called by the user are given in the
8 ! table below, and are well documented internally. The user need not
9 ! be concerned with any other subroutines in HOMPACK90.
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Size: 132096 |
Author: LL |
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Description: 解稀疏对称方程组的ICCG法fortran源程序-Solution of sparse symmetric equations of the ICCG method fortran source code
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Size: 1024 |
Author: 范磊 |
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Description: 耶鲁大学开发的大型稀疏方程组计算程序
-A solver of large sparse matrix developed by yela
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Size: 1126400 |
Author: 赵志斌 |
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Description: SPARSKIT 是一个 FORTRAN
子程序包用来求解稀疏矩阵。它包含了基本的稀疏矩阵运算代码以及一些迭代算法。-SPARSKIT is a package of FORTRAN
subroutines for working with sparse matrices. It includes general
sparse matrix manipulation routines as well as a few iterative
solvers.
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Size: 1172480 |
Author: 平卫 |
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Description: 松弛因子做自适应估计的SOR迭代法求解大型稀疏线性代数方程组程序-Relaxation Factor in the SOR iterative adaptive estimation method for solving large sparse linear algebraic equations program
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Size: 1024 |
Author: 康延云 |
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Description: 稀疏矩阵算法及其程序实现（杨绍祺）。本书较全面的介绍了在求解非线性代数方程组，非线性微分方程组和非线性优化等问题时所产生的稀疏线性化代数方程组的稀疏矩阵算法。-Sparse matrix algorithm and program implementation (Yang Shaoqi). More comprehensive introduction to the book in solving nonlinear algebraic equations, nonlinear differential equations and nonlinear optimization problems arising from the sparse linear algebraic equations sparse matrix algorithm.
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Size: 5013504 |
Author: wangzijian |
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Description: Yousef Saad 的稀疏线性系统的迭代方法。包含预处理，Krylov子空间迭代法等内容。-iterative methods for sparse linear systems
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Size: 2755584 |
Author: wangzijian |
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Description: 是针对大规模的线性方程组，及最小二乘问题的迭代求解方法。改方法可减少内存占有量，再数学上与共轭梯度法等价。-A method of solving large sparse linear systems and linear least squares,which can save memory and equivant to the CG method in the view of pure mathematics.
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Size: 673792 |
Author: 赵娜 |
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Description: Fortran版本的MX创建稀疏最大和引擎的应用程序的逻辑矩阵功能-The Fortran version of the mx Create Sparse Logical Matrix function for max and engine apps.
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Size: 5120 |
Author: leron |
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Description: 利用Fortran中自带的Pardiso库函数解决稀疏矩阵，其利用ＣＳＲ格式储存数据（附带例子）(The Pardiso library function in Fortran is used to solve the sparse matrix, which stores data in CSR format (with examples))
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Size: 2048 |
Author: hi，你好 |
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