# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 linear-algebra× 584 Questions on the algorithmic/computational aspects of linear algebra, including the solution of linear systems, least squares problems, eigenproblems, and other such matters. optimization× 512 intended for questions on methods for the (constrained or unconstrained) minimization or maximization of functions. matlab× 447 Questions about the numerical programming language MATLAB. finite-element× 443 A means of solving ordinary and partial differential equations. The domain of the problem is broken up into elements, and the solution in each element is expanded in a basis of functions. The Finite … pde× 429 equations that relate the partial derivatives of a function of more than one variable. This tag is intended for questions on modeling phenomena with PDEs, sol… algorithms× 343 A description of the specific steps needed to solve a particular problem in an unambiguous way, expressed in an abstract form. finite-difference× 329 Referring to the discretization of derivatives by Finite differences, and its applications to numerical solutions of partial differential equations. numerical-analysis× 327 Construction and analysis of algorithms to compute approximate discrete solutions of continuous problems. A canonical example is the approximation of derivatives via difference quotients. fluid-dynamics× 296 The study of the properties of fluids and gases in motion python× 274 A general purpose high-level programming language that emphasizes ease of code syntax and readability. matrices× 230 In linear algebra, an $m$x$n$ matrix maps vectors from space $R^m$ to $R^n$. Matrices are distinguished from multidimensional arrays, which is a general term for any rectangular array of informat… numerics× 198 Widely used as a synonym for numerical-analysis, in particular in the German speaking community. ode× 191 Ordinary Differential Equations (ODEs) contain functions of only one independent variable, and one or more of their derivatives with respect to that variable. This tag is intended for questions on mod… parallel-computing× 189 The study of solving computational problems by exploiting the use of multiple processors simultaneously. linear-solver× 185 Referring to methods for solving linear systems of equations. c++× 177 A powerful object oriented programming language. boundary-conditions× 165 For questions regarding the choice and/or appropriateness of conditions necessary to model a particular phenomenon with a partial differential equations. simulation× 144 the process of mimicking the behaviour of a real physical process or system using a representative model. sparse× 138 Problems in which an operator or function can be represented with asymptotically less data than the naive representation. Not limited to sparse matrices. software× 129 Questions about libraries and standalone software designed or well-suited for scientific or numerical calculations. reference-request× 129 for requests for books, papers, and citations. computational-geometry× 129 The study of efficient algorithms and data structures to solve various problems involving point sets, line segments, polygons, polyhedra, simplices, etc. nonlinear-equations× 128 Solution of nonlinear systems of equations. The equations might be algebraic or differential equations. convex-optimization× 127 a special case of mathematical optimization where the feasible region is convex and the objective is to either minimize a convex function or maximize a concave function. eigenvalues× 125 matrix× 124 a rectangular array of elements (e.q. numbers, symbols, or expressions), arranged in columns and rows. petsc× 119 an open source suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. eigensystem× 119 a vector such that the action of the operator is the same as multiplication by a constant, called the eigenvalue. The eigensystem of an operator is the set of all suc… fortran× 113 a general purpose programming language widely used by the scientific computing community. computational-physics× 107 the study and implementation of numerical algorithms to solve problems in physics for which a quantitative theory already exists. iterative-method× 106 A method which produces a sequence of numerical approximations which converges (provided technical conditions are satisfied) to the solution of a problem, generally through repeated applications of so… performance× 103 Questions about the execution speed and memory usage of algorithms, data structures, languages and libraries. constrained-optimization× 103 Questions about optimization problems subject to additional constraints. finite-volume× 100 Referring to the discretization of partial differential equations using Finite Volume Method. stability× 95 The study of the propagation of errors in a numerical algorithm. convergence× 91 Questions related to whether the sequence of iterates generated by an iterative method has one or more limit points, and if those limit points have the correct properties.