Unformatted text preview: δ r δθ δ z. When we turn a sum over such elements into an volume integral, the element becomes rdrd θ dz. Spherical polars Here's a picture to show the volume element in spherical polars: As the radius r increases by a small amount δ r, and the angle θ increases by a small amount δθ , and the angle φ increases by a small amount δφ the volume element that is produced is r 2 sin θ δ r δθ δφ . When we turn a sum over such elements into an volume integral, the element becomes r 2 sin θ drd θ d φ . Return...
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- Spring '11
- Coordinate system, Spherical coordinate system, Polar coordinate system, Cylindrical coordinate system, radius r increases