List questions from partial-derivative

Published on 14 Apr 2026 - 13:22

96

Views

Is $\frac{\partial}{\partial x}(x-y)$ ill-defined?

Published on 12 Apr 2026 - 12:38

91

Views

How to calculate the surface area of an object?

Published on 12 Apr 2026 - 0:22

38

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Does the scalar function $W(x,y,z)$ exist or not?

Published on 14 Apr 2026 - 14:18

97

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Minimum of $(a+\frac{1}{a})^{50}+(b+\frac{1}{b})^{50}+(c+\frac{1}{c})^{50}$ where $a+b+c=1$

Published on 02 Apr 2026 - 20:58

97

Views

Attempting to prove the differentiability of $f(x,y) = \vert xy \vert$

Published on 14 Apr 2026 - 13:37

61

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Matrix-Matrix Derivative with Product Rule

Published on 13 Apr 2026 - 13:47

62

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What is the definition of differentiability in multivariable calculus?

Published on 10 Apr 2026 - 11:38

36

Views

A good notation for the partial derivative of $g$ w.r.t. time variable at $(t-s, x)$

Published on 14 Apr 2026 - 16:43

172

Views

How to use Lagrange's multipliers to solve a problem?

Published on 10 Apr 2026 - 19:03

36

Views

An application of chain rule to compute $\frac{\partial^2}{\partial x_k^2} g(y-x)$

Published on 28 Mar 2026 - 11:43

33

Views

Determine the boundary $R$ of the area $D_2 $

Published on 14 Apr 2026 - 16:30

54

Views

Calculate the flow (divergence) through a hemisphere

Published on 09 Apr 2026 - 17:13

52

Views

I don't understand how to differentiate this multivariable function

Published on 11 Apr 2026 - 17:31

41

Views

Another question about partial derivatives with implicit functions

Published on 09 Apr 2026 - 14:43

List Question

Partial derivatives of $f(x,y)=x-y$

Is $\frac{\partial}{\partial x}(x-y)$ ill-defined?

How to calculate the surface area of an object?

Does the scalar function $W(x,y,z)$ exist or not?

Minimum of $(a+\frac{1}{a})^{50}+(b+\frac{1}{b})^{50}+(c+\frac{1}{c})^{50}$ where $a+b+c=1$

Attempting to prove the differentiability of $f(x,y) = \vert xy \vert$

Matrix-Matrix Derivative with Product Rule

What is the definition of differentiability in multivariable calculus?

A good notation for the partial derivative of $g$ w.r.t. time variable at $(t-s, x)$

How to use Lagrange's multipliers to solve a problem?

An application of chain rule to compute $\frac{\partial^2}{\partial x_k^2} g(y-x)$

Determine the boundary $R$ of the area $D_2 $

Calculate the flow (divergence) through a hemisphere

I don't understand how to differentiate this multivariable function

Another question about partial derivatives with implicit functions

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