. . . . . . . . . "1454"^^ . "A secant plane is a plane containing a nontrivial section of a sphere or an ellipsoid, or such a plane that a sphere is projected onto. Secant planes are similar to tangent planes, which contact the sphere's surface at a point, while secant planes contact the surface along curves. The two-dimensional representations of secant planes are secant lines, the lines that join two distinct points on a curve."@en . . . . . . "A secant plane is a plane containing a nontrivial section of a sphere or an ellipsoid, or such a plane that a sphere is projected onto. Secant planes are similar to tangent planes, which contact the sphere's surface at a point, while secant planes contact the surface along curves. The two-dimensional representations of secant planes are secant lines, the lines that join two distinct points on a curve."@en . . . . "932042986"^^ . . "Secant plane"@en . "52167936"^^ . . . . . .