After solving a few systems of equations, you will recognize that it does not matter so much what we call our variables, as opposed to what numbers act as their coefficients. A system in the variables \(x_1,\,x_2,\,x_3\) would behave the same if we changed the names of the variables to \(a,\,b,\,c\) and kept all the constants the same and in the same places. In this section, we will isolate the key bits of information about a system of equations into something called a matrix, and then use this matrix to systematically solve the equations. Along the way we will obtain one of our most important and useful computational tools.

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- September 11th, 2017
- 7 years ago
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##### Definition of column vector, coordinate vector space math.la.d.vec.col.coord

##### Definition of size of a vector, coordinate vector space math.la.d.vec.size.coord

##### Definition of vector, coordinate vector space math.la.d.vec.coord

##### Definition of entry/component of a vector, coordinate vector space math.la.d.vec.component.coord