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.
For questions involving 3D spatial data. Should ideally be used for questions where the 3D nature of the problem is a particular challenge, rather than just any question involving 3D data.
For questions about characterizing or improving the accuracy of a computational method.
For questions about AMR, a technique for dynamically updating the precision of a grid to ensure a certain accuracy for a given region.
To move in some direction (as a fluid does in a pipe). Often contrasted with diffusion, which is a spreading out without necessarily having any movement of the field as a whole.
Questions related to solving the advection-diffusion equation using numerical methods, including derivation and implementation of boundary conditions.
A description of the specific steps needed to solve a particular problem in an unambiguous way, expressed in an abstract form.
A method of finding nearly-optimal solutions to a problem. Generally, this terminology is applied to algorithms and heuristics for solving NP-Hard problems in computer science.
Assembly language (asm) programming questions with application to scientific computing. DO NOT USE for questions on finite-element method, use [finite-element] instead.
Often referred to as Algorithmic-Differentiation or AD -- a technique to automatically generate code that evaluates the derivative of a function. AD repeatedly applies the chain rule and classical rul…
Referring to sparse matrices with concentrations of non-zero elements along a combination of diagonals, subdiagonals, and/or superdiagonals.
A linearly independent set of elements of a vector space such that any element in that vector space can be expressed as a linear combination of the elements of the basis.
For questions about best/common practices for benchmarking the performance of computational code.
Basic Linear Algebra Subprograms - A standard API library with vector-vector, matrix-vector, and matrix-matrix operations.
For questions regarding the choice and/or appropriateness of conditions necessary to model a particular phenomenon with a partial differential equations.
For questions related to computational software and libraries written in the C programming language
For questions about writing C++ computational code or utilizing libraries written with C++.