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2. System of linear equations - Wikipedia

   en.wikipedia.org/wiki/System_of_linear_equations

   A linear system in three variables determines a collection of planes. The intersection point is the solution. In mathematics, a system of linear equations (or linear system) is a collection of two or more linear equations involving the same variables. [1] [2] For example,

3. Elimination theory - Wikipedia

   en.wikipedia.org/wiki/Elimination_theory

   In commutative algebra and algebraic geometry, elimination theory is the classical name for algorithmic approaches to eliminating some variables between polynomials of several variables, in order to solve systems of polynomial equations.

4. Linear programming - Wikipedia

   en.wikipedia.org/wiki/Linear_programming

   A closed feasible region of a problem with three variables is a convex polyhedron. The surfaces giving a fixed value of the objective function are planes (not shown). The linear programming problem is to find a point on the polyhedron that is on the plane with the highest possible value.

5. Microsoft Math Solver - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Math_Solver

   Microsoft Math Solver – Mobile app for iOS (first released in November 2019-No longer available in August 2024.) [13] and Android (first released in December 2019), [14] as well as a Microsoft Edge extension. Recognizes handwritten math. Provides a detailed step-by-step explanation, interactive graphs, relevant online video lectures, and ...

6. Equation solving - Wikipedia

   en.wikipedia.org/wiki/Equation_solving

   In the simple case of a function of one variable, say, h(x), we can solve an equation of the form h(x) = c for some constant c by considering what is known as the inverse function of h. Given a function h : A → B , the inverse function, denoted h −1 and defined as h −1 : B → A , is a function such that

7. Relaxation (iterative method) - Wikipedia

   en.wikipedia.org/wiki/Relaxation_(iterative_method)

   Relaxation methods are used to solve the linear equations resulting from a discretization of the differential equation, for example by finite differences. [ 2 ] [ 3 ] [ 4 ] Iterative relaxation of solutions is commonly dubbed smoothing because with certain equations, such as Laplace's equation , it resembles repeated application of a local ...