Rubem Pacelli

Member for 3 years, 3 months
Last seen more than a week ago

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notation

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Questions

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Score Activity Newest Views

5

3blue1brown and the visual argument that a vector is fundamentally different from a matrix

Dec 11, 2022

3

Correlation, Orthogonality, and Independence of pair of random variables in a Venn diagram

Aug 14, 2022

2

Ambiguity over the notation $\nabla^2$: vector Laplacian operator (Vector Calculus) vs. second directional derivative (Matrix Calculus)

May 5

1

What is the value of $\dfrac{d z^*}{dz}$?

Sep 23, 2022

0

$\dfrac{\partial y}{\partial\mathbf{x}^\top} = \dfrac{\partial y}{\partial\mathbf{x}}^\top$ in denominator layout?

Oct 23, 2022

Answers

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4

Standard notation for sum of vector elements?

Dec 10, 2022

2

Domain, Codomain, Range, Image and Preimage

Oct 7, 2022

2

What is the agreed upon definition of a "positive definite matrix"?

Nov 11, 2022

1

Best notation for probability density function?

Oct 12, 2022

1

What is the difference between contour and line integrals?

May 17

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notation

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linear-algebra

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vectors

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matrices

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vector-spaces

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