Shapes

Ellipse, evolute, vertex and curve, Humdrum circle or ricochet swerve Astroids or cusps, arcs or sectors; What have those got to do with vectors? Curvature, cone, Cartesian plane… Oval, deltoid… what’s in a name? Geoid oscillation, pedal, radial, rose… What on earth do I know of those? Hypocycloid, cruciform, Sierpinski carpet… Inverse tangent or Apollonian gasket? Snowflake, hypercube, space-time dimension Pressured, gauged, or under tension? Trammel of Archimedes, planes, rotations – Congruence, right angles, equivalence relation; Conchoid curve, Orthoptic, Lemoine hexagon, Triangle, star or good old pentagon. Crescent, rhombus, magatama, square, Caustic curves, salinon, ying-yang or sphere! About whichever’s the shape that you talk, Basically, it’s taking a line for a walk!