Question

Changing order of integration:$\int_0^\infty\int_{-\infty}^{-y}f(x)\mathrm dx\mathrm dy\Rightarrow\int_{-\infty}^0\int_0^{-x}f(x)\mathrm dy\mathrm dx$

score 215 · Answer 1 · 2026-05-11 05:30:53

215

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Changing order of integration:$\int_0^\infty\int_{-\infty}^{-y}f(x)\mathrm dx\mathrm dy\Rightarrow\int_{-\infty}^0\int_0^{-x}f(x)\mathrm dy\mathrm dx$

Published on 11 May 2026 - 5:30

score 450 · Answer 2 · 2026-04-14 00:12:05

450

Views

Parametrizing the curve of intersection between a elliptic cylinder and a sphere

Published on 14 Apr 2026 - 0:12

score 300 · Answer 3 · 2026-04-09 03:27:09

300

Views

What is the proper equation to use when finding the tangent plane?

Published on 09 Apr 2026 - 3:27

score 71 · Answer 4 · 2026-04-14 03:28:28

71

Views

How to find $ \iiint_{S} xyz\; dx dy dz$ for a given set $S$?

Published on 14 Apr 2026 - 3:28

score 332 · Answer 5 · 2026-04-12 09:43:05

332

Views

How to find the range of this multivariable logarithmic function?

Published on 12 Apr 2026 - 9:43

score 789 · Answer 6 · 2026-05-15 22:25:59

789

Views

How to Calculate $\int_{S} xyz~d{\sigma}$ where $S$ is the portion $x+y+z=1$ in the first octant $ 0 \leq x , 0 \leq y , 0 \leq z$

Published on 15 May 2026 - 22:25

score 67 · Answer 7 · 2026-05-10 14:07:37

67

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Can the unique, stationary solution of a Cauchy problem be prolonged on all $\Bbb R$ even if the differential equation is undefined at one point?

Published on 10 May 2026 - 14:07

score 1.1k · Answer 8 · 2026-05-11 04:06:25

1.1k

Views

Change of variables and the partial derivative

Published on 11 May 2026 - 4:06

score 66 · Answer 9 · 2026-05-10 19:45:06

66

Views

prooving volume formular for simplices

Published on 10 May 2026 - 19:45

score 337 · Answer 10 · 2026-04-29 02:33:11

337

Views

Prove than cube has a bigger volume than cuboid with the same sum of edge lengths

Published on 29 Apr 2026 - 2:33

score 2.6k · Answer 11 · 2026-05-15 22:27:40

2.6k

Views

How to calculate flux of vector field

Published on 15 May 2026 - 22:27

score 453 · Answer 12 · 2026-04-17 06:35:55

453

Views

Test if vector valued functions is increasing?

Published on 17 Apr 2026 - 6:35

score 109 · Answer 13 · 2026-04-08 20:41:19

109

Views

Is there a geometrical explanation for a method using critical points in a multivariable context

Published on 08 Apr 2026 - 20:41

score 129 · Answer 14 · 2026-05-15 22:27:41

129

Views

How to Calculate the flux of the Vector Field on the surface $z = 1-x^2-y^2$ ( getting normal vector $(0,0,0)$ at the point $(0,0,1)$ ?!!! )

Published on 15 May 2026 - 22:27

score 98 · Answer 15 · 2026-04-18 23:35:30

98

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Prove $u(x,y,z)=f(t+r)/r+g(t-r)/r$ satisfies $u_{xx}+u_{yy}+u_{zz}=u_{tt}$.

Published on 18 Apr 2026 - 23:35

List Question

Changing order of integration:$\int_0^\infty\int_{-\infty}^{-y}f(x)\mathrm dx\mathrm dy\Rightarrow\int_{-\infty}^0\int_0^{-x}f(x)\mathrm dy\mathrm dx$

Parametrizing the curve of intersection between a elliptic cylinder and a sphere

What is the proper equation to use when finding the tangent plane?

How to find $ \iiint_{S} xyz\; dx dy dz$ for a given set $S$?

How to find the range of this multivariable logarithmic function?

How to Calculate $\int_{S} xyz~d{\sigma}$ where $S$ is the portion $x+y+z=1$ in the first octant $ 0 \leq x , 0 \leq y , 0 \leq z$

Can the unique, stationary solution of a Cauchy problem be prolonged on all $\Bbb R$ even if the differential equation is undefined at one point?

Change of variables and the partial derivative

prooving volume formular for simplices

Prove than cube has a bigger volume than cuboid with the same sum of edge lengths

How to calculate flux of vector field

Test if vector valued functions is increasing?

Is there a geometrical explanation for a method using critical points in a multivariable context

How to Calculate the flux of the Vector Field on the surface $z = 1-x^2-y^2$ ( getting normal vector $(0,0,0)$ at the point $(0,0,1)$ ?!!! )

Prove $u(x,y,z)=f(t+r)/r+g(t-r)/r$ satisfies $u_{xx}+u_{yy}+u_{zz}=u_{tt}$.

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