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Laplacian in elliptical coordinates

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#calculus #ordinary-differential-equations #coordinate-systems #chain-rule #laplacian
149
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How can we show that $I_{yy}=I_{zz}=I_{xx}$ and $I_{xy}=0$ using symmetry arguments?

Published on
#definite-integrals #coordinate-systems #spherical-coordinates #symmetry #multiple-integral
98
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What is the locus of the center of a circle which touches externally two given circles?

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#euclidean-geometry #circles #coordinate-systems
291
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Condition that the line $y=mx+c$ is normal to a conic

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#coordinate-systems
56
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Conversion into local coordinates.

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#coordinate-systems
204
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Transformation from spherical to cylindrical coordinates

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#trigonometry #coordinate-systems #spherical-coordinates #cylindrical-coordinates
124
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A Problem With Coordinate Systems

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#geometry #circles #coordinate-systems #plane-geometry
99
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How can you explain $\cot(\alpha)= \dfrac{d}{d\theta}\cdot \ln(r) = \dfrac{1}{r} \dfrac{dr}{dt}$ in a polar coordinate system?

Published on
#coordinate-systems #derivatives
2k
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How to transform integral after coordinate transformation

Published on
#real-analysis #integration #definite-integrals #coordinate-systems
172
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Point on the square with a circle inscribed inside it

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#geometry #trigonometry #coordinate-systems
85
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Change of coordinates vs change of shape

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#calculus #graphing-functions #coordinate-systems #cylindrical-coordinates
256
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Help understand the section formula

Published on
#algebra-precalculus #coordinate-systems
119
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Doubt about external division of a line

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#algebra-precalculus #coordinate-systems
331
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Find a projective change of coordinates

Published on
#conic-sections #coordinate-systems #projective-geometry
35
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Find $m$ such that the line is normal to the given hyperbola

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#calculus #geometry #analytic-geometry #conic-sections #coordinate-systems

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