The below figure show 4 perspectives of an object composed of 4 intersecting surfaces. Additionally shown are a collection of unit normal, coloured differently for each component surface Zo -3 2 4 4 2 ZO 2 4 OZ 2 X x ZO -2 -4 2 × 2 Definitions for the four surfaces and the respective unit normals are as follows. • S₁ x² + y²+ z² = 16, n₁ = êr S2x=2, n2 = î • S3 y=-3, n3 = −ĵ - • S₁ = x − y + z = 5, ñ4= √3 (1 − 3 + k) (i) Rewrite each of the surface definitions in cylindrical coordinates. These will be implicit defini- tions. Do not bother specifying the domains. (ii) Rewrite each of the surface definitions in spherical coordinates. These will be implicit definitions. Do not bother specifying the domains. (iii) The vector of cylindrical unit vectors is related to the vector of cartesian unit vectors via the matrix equation, ëp cos(0) sin(6) 0 -sin() cos(0) 0 2 0 1 k ёф êz Similarly, the vector of spherical unit vectors is related to the vector of cartesian unit vectors via the matrix equation, er sin(0) cos(6) sin(0) sin(6) cos(0) 2 = Cos(0) cos(6) cos(0) sin(6) - sin(0) ёф - sin() cos(0) 0 k In both equations the matrix is orthonormal, meaning its columns and rows are orthogonal unit vectors. As such, the inverse of each matrix is its transpose. Use the matrix relations and the relations between cartesian, cylindrical, and spherical coordinates to rewrite (A) ₁ in (a) cartesian form and (b) cylindrical form. (B) 4 in (a) cylindrical form and (b) spherical form.
The below figure show 4 perspectives of an object composed of 4 intersecting surfaces. Additionally shown are a collection of unit normal, coloured differently for each component surface Zo -3 2 4 4 2 ZO 2 4 OZ 2 X x ZO -2 -4 2 × 2 Definitions for the four surfaces and the respective unit normals are as follows. • S₁ x² + y²+ z² = 16, n₁ = êr S2x=2, n2 = î • S3 y=-3, n3 = −ĵ - • S₁ = x − y + z = 5, ñ4= √3 (1 − 3 + k) (i) Rewrite each of the surface definitions in cylindrical coordinates. These will be implicit defini- tions. Do not bother specifying the domains. (ii) Rewrite each of the surface definitions in spherical coordinates. These will be implicit definitions. Do not bother specifying the domains. (iii) The vector of cylindrical unit vectors is related to the vector of cartesian unit vectors via the matrix equation, ëp cos(0) sin(6) 0 -sin() cos(0) 0 2 0 1 k ёф êz Similarly, the vector of spherical unit vectors is related to the vector of cartesian unit vectors via the matrix equation, er sin(0) cos(6) sin(0) sin(6) cos(0) 2 = Cos(0) cos(6) cos(0) sin(6) - sin(0) ёф - sin() cos(0) 0 k In both equations the matrix is orthonormal, meaning its columns and rows are orthogonal unit vectors. As such, the inverse of each matrix is its transpose. Use the matrix relations and the relations between cartesian, cylindrical, and spherical coordinates to rewrite (A) ₁ in (a) cartesian form and (b) cylindrical form. (B) 4 in (a) cylindrical form and (b) spherical form.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:The below figure show 4 perspectives of an object composed of 4 intersecting surfaces. Additionally
shown are a collection of unit normal, coloured differently for each component surface
Zo
-3
2
4
4
2
ZO
2
4
OZ
2
X
x
ZO
-2
-4
2
× 2
Definitions for the four surfaces and the respective unit normals are as follows.
• S₁ x² + y²+ z² = 16, n₁ = êr
S2x=2, n2 = î
• S3 y=-3, n3 = −ĵ
-
• S₁ = x − y + z = 5, ñ4= √3 (1 − 3 + k)
(i) Rewrite each of the surface definitions in cylindrical coordinates. These will be implicit defini-
tions. Do not bother specifying the domains.
(ii) Rewrite each of the surface definitions in spherical coordinates. These will be implicit definitions.
Do not bother specifying the domains.
(iii) The vector of cylindrical unit vectors is related to the vector of cartesian unit vectors via the
matrix equation,
ëp
cos(0) sin(6) 0
-sin() cos(0) 0
2
0
1
k
ёф
êz
Similarly, the vector of spherical unit vectors is related to the vector of cartesian unit vectors via
the matrix equation,
er
sin(0) cos(6) sin(0) sin(6)
cos(0)
2
=
Cos(0) cos(6) cos(0) sin(6)
- sin(0)
ёф
- sin()
cos(0)
0
k
In both equations the matrix is orthonormal, meaning its columns and rows are orthogonal unit
vectors. As such, the inverse of each matrix is its transpose. Use the matrix relations and the
relations between cartesian, cylindrical, and spherical coordinates to rewrite
(A) ₁ in (a) cartesian form and (b) cylindrical form.
(B) 4 in (a) cylindrical form and (b) spherical form.
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