• → Det

DesignMatrix

WMA link

DesignMatrix[m, f, x]

returns the design matrix for a linear model f in the variables x.

• • DesignMatrix[{{2, 1}, {3, 4}, {5, 3}, {7, 6}}, x, x]

• • DesignMatrix[{{2, 1}, {3, 4}, {5, 3}, {7, 6}}, f[x], x]