When we try to judge if two equations are singular or not, do we calculate the determinant of only cofficient of Xs which is [[-1,3][3,2]] as this example or the cofficient of Xs plus the right side which is [[-1,3,7][3,2,1]]?
Hi @flyunicorn ,
To determine singularity of equations, we calculate the determinant of the coefficients matrix (just the variables’ coefficients), not the augmented matrix (coefficients + constants on the right-hand side)
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