Least Squares Fit of a Polynomial | Linear Algebra

[@WrathofMath]

Help support the production of this course, get early and exclusive videos, and lecture notes at the premium tier! kzbin.info/door/yEKvaxi8mt9FMc62MHcliwjoin Linear Algebra course: kzbin.info/aero/PLztBpqftvzxWT5z53AxSqkSaWDhAeToDG Linear Algebra exercises: kzbin.info/aero/PLztBpqftvzxVmiiFW7KtPwBpnHNkTVeJc

[@PunmasterSTP]

These lectures are polynomialwesome! 👍

[@salem.88]

Your channel has been the lifeline of my lin alg course this semester. One thing I haven't found a clear answer for is what happens if the matrix derived from A^T * A (or in this video you used M^T * M) is singular? Or is there a proof that shows this matrix will always have an inverse?