Advent Wreath Candles. Set on the branches of the wreath are four candles: three purple candles and one pink candle. In the center of the wreath sits a white candle. As a whole, these candles represent the coming of the light of Christ into the world. On the first Sunday of Advent, the first purple candle is lit.
In mathematics,  a coefficient is a multiplicative factor in some term of a polynomial, a series or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables.
The coefficient matrix is a matrix comprised of the coefficients of the variables. which is written such that each row represents one equation and each column contains the. coefficients for the same variable in each equation. The constant matrix is the solution to each of the. equations written in a single column and in the same order as the rows of the coefficient matrix. The augmented matrix is the coefficient matrix with the constant matrix as the last column.