Coordinate Systems Conversion Guide for Cylindrical and Spherical Coordinates
Learn about representing points in space using cylindrical and spherical coordinates, conversions, equations, and graphing in different coordinate systems.
Coordinate Systems Conversion Guide for Cylindrical and Spherical Coordinates
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Presentation Transcript
11.7 Cylindrical and Spherical Coordinates
The Cylindrical Coordinate System • In a cylindrical coordinate system, a point P in space is represented by an ordered triple • is a polar representation of the projection P in the xy-plane. • z is the directed distance from to P.
Conversions: Cylindrical to rectangular Rectangular to cynlidrical
Examples: • Convert from cylindrical to rectangular coordinates • Find an equation in cylindrical coordinates for the rectangular equation • Find an equation in rectangular coordinates for the equation in cylindrical coordinates and sketch its graph.
Spherical Coordinates • In a spherical coordinate system, a point P in space is represented by an ordered triple 1. is the distance between P and the origin, 0 2. is the same angle used in cylindrical coordinates for r greater than or equal to 0. 3. is the angle between the positive z-axis and the line segment from the origin to the point P
Conversions • Spherical to Rectangular • Rectangular to spherical:
More Conversions • Spherical to cylindrical (r 0) • Cylindrical to Spherical (r 0)
More Examples: 1) Convert the point from spherical to rectangular • Find an equation in rectangular coordinates and graph. 3) Convert the equation to cylindrical and spherical,