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1 - 10 of 374 for spherical aberrationSearch Results

A curve on the surface of a sphere. Examples include the baseball cover, Seiffert's

**spherical**spiral,**spherical**helix, and**spherical**spiral.A closed geometric figure on the surface of a sphere which is formed by the arcs of great circles. The

**spherical**polygon is a generalization of the**spherical**triangle. If ...The volume of a

**spherical**wedge is V=2/3r^3theta. The surface area of the corresponding**spherical**lune is S=2r^2theta.A

**spherical**triangle is a figure formed on the surface of a sphere by three great circular arcs intersecting pairwise in three vertices. The**spherical**triangle is the ...The study of figures on the surface of a sphere (such as the

**spherical**triangle and**spherical**polygon), as opposed to the type of geometry studied in plane geometry or solid ...A

**spherical**sector is a solid of revolution enclosed by two radii from the center of a sphere. The**spherical**sector may either be "open" and have a conical hole (left figure; ...Let a, b, and c be the sides of a

**spherical**triangle, then the**spherical**defect is defined as D=2pi-(a+b+c).The tangent indicatrix of a curve of constant precession is a

**spherical**helix. The equation of a**spherical**helix on a sphere with radius r making an angle theta with the ...A

**spherical**cap is the region of a sphere which lies above (or below) a given plane. If the plane passes through the center of the sphere, the cap is a called a hemisphere, ...A

**spherical**segment is the solid defined by cutting a sphere with a pair of parallel planes. It can be thought of as a**spherical**cap with the top truncated, and so it ......