Polar, Cylindrical and Spherical Coordinates
http://www.maa.org/taxonomy/term/40381/0
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Einstein's Principle
http://www.maa.org/programs/facultyanddepartments/classroomcapsulesandnotes/einsteinsprinciple
<div class="field fieldnamebody fieldtypetextwithsummary fieldlabelhidden"><div class="fielditems"><div class="fielditem even"><p><em>The author verifies that a scalar field associated to a vector field, satisfying spherical symmetry and Laplace's equation, implies Newton's inverse square law.</em></p>
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Volumes of Cones, Paraboloids, and Other "Vertex Solids"
http://www.maa.org/programs/facultyanddepartments/classroomcapsulesandnotes/volumesofconesparaboloidsandothervertexsolids
<div class="field fieldnamebody fieldtypetextwithsummary fieldlabelhidden"><div class="fielditems"><div class="fielditem even"><p><em>Using polar curves, the author defines "vertex solids", which include usual cones and paraboloids, and computes their volumes. </em></p>
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Spherical Coordinates from Cylindrical Coordinates on a Torus
http://www.maa.org/programs/facultyanddepartments/classroomcapsulesandnotes/sphericalcoordinatesfromcylindricalcoordinatesonatorus
<div class="field fieldnamebody fieldtypetextwithsummary fieldlabelhidden"><div class="fielditems"><div class="fielditem even"><p><i>Spherical and cylindrical coordinates arise naturally in a volume calculation.</i></p>
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Polar, Cylindrical and Spherical Coordinates (Classroom Capsules and Notes)
http://www.maa.org/programs/facultyanddepartments/coursecommunities/polarcylindricalandsphericalcoordinatesclassroomcapsulesandnotes

Cylindrical Coordinate Demonstration
http://www.maa.org/programs/facultyanddepartments/coursecommunities/cylindricalcoordinatedemonstration

Change of Variables: Polar to Rectangular Coordinates
http://www.maa.org/programs/facultyanddepartments/coursecommunities/changeofvariablespolartorectangularcoordinates

Drawing plane and coordinate system
http://www.maa.org/programs/facultyanddepartments/coursecommunities/drawingplaneandcoordinatesystem

Multivariable Calculus Applets
http://www.maa.org/programs/facultyanddepartments/coursecommunities/multivariablecalculusapplets

Bridge Project Activities, Vector Calculus Activities
http://www.maa.org/programs/facultyanddepartments/coursecommunities/bridgeprojectactivitiesvectorcalculusactivities

Spherical Coordinates
http://www.maa.org/programs/facultyanddepartments/coursecommunities/sphericalcoordinates