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2. System of linear equations - Wikipedia

   en.wikipedia.org/wiki/System_of_linear_equations

   Thus the solution set may be a plane, a line, a single point, or the empty set. For example, as three parallel planes do not have a common point, the solution set of their equations is empty; the solution set of the equations of three planes intersecting at a point is single point; if three planes pass through two points, their equations have ...

3. Glossary of mathematical symbols - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...

4. Linear subspace - Wikipedia

   en.wikipedia.org/wiki/Linear_subspace

   The solution set to any homogeneous system of linear equations with n variables is a subspace in the coordinate space K n: {[]: + + + = + + + = + + + =}. For example, the set of all vectors ( x , y , z ) (over real or rational numbers ) satisfying the equations x + 3 y + 2 z = 0 and 2 x − 4 y + 5 z = 0 {\displaystyle x+3y+2z=0\quad {\text{and ...

5. Support (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Support_(mathematics)

   In mathematics, the support of a real-valued function is the subset of the function domain of elements that are not mapped to zero. If the domain of is a topological space, then the support of is instead defined as the smallest closed set containing all points not mapped to zero.

6. Solution set - Wikipedia

   en.wikipedia.org/wiki/Solution_set

   In mathematics, the solution set of a system of equations or inequality is the set of all its solutions, that is the values that satisfy all equations and inequalities. [1] Also, the solution set or the truth set of a statement or a predicate is the set of all values that satisfy it. If there is no solution, the solution set is the empty set. [2]

7. Equality (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Equality_(mathematics)

   The set of solutions to an equation or system of equations is called its solution set. [21] For example, the set of all solution pairs ( x , y ) {\displaystyle (x,y)} of the equation x 2 + y 2 = 1 {\displaystyle x^{2}+y^{2}=1} forms the unit circle in analytic geometry ; therefore, this equation is called the equation of the unit circle .

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9. Bracket (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Bracket_(mathematics)

   Braces { } are used to identify the elements of a set. For example, {a,b,c} denotes a set of three elements a, b and c. Angle brackets are used in group theory and commutative algebra to specify group presentations, and to denote the subgroup or ideal generated by a collection of elements.