Matrix Calculus (For Machine Learning and Beyond)
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#7What does calculus mean ?
Re: Matrix Calculus (For Machine Learning and Beyond)
#8In a graduate numerical optimization class I took over a decade ago, the professor spent 10 minutes on the first day deriving some matrix calculus identity by working out the expressions for partial derivatives using simple calculus rules and a lot of manual labor. Then, as the class was winding up, he joked and said "just kidding, don't do that... here's how we can do this with a Taylor expansion", and proceeded to derive the same identity in what felt like 30 seconds.
Also, don't forget the Jacobian and gradient aren't the same thing!
Re: Matrix Calculus (For Machine Learning and Beyond)
#9Re: Matrix Calculus (For Machine Learning and Beyond)
#10If you want to get handy with matrix calculus, the real prerequisite is being comfortable with Taylor expansions and linear algebra. In a graduate numerical optimization class I took over a decade ago, the professor spent 10 minutes on the first day deriving some matrix calculus identity by working out the expressions for partial derivatives using simple calculus rules and a lot of manual labor. Then, as the class wa…