List questions from scalar-fields

Published on 09 Apr 2013 - 23:23

10.9k

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Gauss's divergence theorem for a scalar field

Published on 15 Jun 2013 - 5:24

1.4k

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How to compute the gradient of a quadratic form?

Published on 27 Aug 2013 - 16:50

17.8k

Views

Relation between the Hessian matrix and curvature

Published on 01 Sep 2013 - 4:45

632

Views

Is the scalar field $ X \mapsto \mbox{tr} \left( X A X^T B \right) $ always convex?

Published on 20 Dec 2013 - 3:45

7.5k

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Showing that the function given by $f(x,y)=\frac{xy}{\sqrt{x^2+y^2}}$ and $f(0,0)=0$ is continuous but not differentiable

Published on 28 Dec 2013 - 17:42

42k

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Taking a derivative with respect to a matrix

Published on 30 Dec 2013 - 12:10

641

Views

Differentiating the composition of a scalar and a vector field using the chain rule

Published on 17 Feb 2014 - 0:41

815

Views

Show that no scalar field exists

Published on 12 Apr 2017 - 19:00

976

Views

How is the gradient of a radial scalar field, radial?

Published on 27 May 2017 - 11:45

249

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Calculate the derivative for the EM algorithm

Published on 03 Jun 2017 - 1:22

44

Views

Laplacian definition as difference of scalar function value at point and its average at neighbouring points

Published on 04 Jun 2017 - 16:15

1.4k

Views

Direction of Gradient of a scalar function

Published on 19 Jun 2017 - 14:43

80

Views

Initializing wave propagation from an arbitrary curve on a triangular mesh

Published on 03 Jul 2017 - 14:45

1.4k

Views

Gradient of $H \mapsto \| A − W H \|_{\text{F}}^2$

Published on 18 Jul 2017 - 21:47

List Question

Gradient of $Z \mapsto \left( Z^T \left( \operatorname{diag}(ZZ^T\mathbf{1}) - ZZ^T\right)Z\right)$

Gauss's divergence theorem for a scalar field

How to compute the gradient of a quadratic form?

Relation between the Hessian matrix and curvature

Is the scalar field $ X \mapsto \mbox{tr} \left( X A X^T B \right) $ always convex?

Showing that the function given by $f(x,y)=\frac{xy}{\sqrt{x^2+y^2}}$ and $f(0,0)=0$ is continuous but not differentiable

Taking a derivative with respect to a matrix

Differentiating the composition of a scalar and a vector field using the chain rule

Show that no scalar field exists

How is the gradient of a radial scalar field, radial?

Calculate the derivative for the EM algorithm

Laplacian definition as difference of scalar function value at point and its average at neighbouring points

Direction of Gradient of a scalar function

Initializing wave propagation from an arbitrary curve on a triangular mesh

Gradient of $H \mapsto \| A − W H \|_{\text{F}}^2$

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