spiral x28 dreamstime symbol x29

navigate by keyword : abstract aged ammonite ammonitesna ancient angle archimedean background black body circle closeup coil color constant continuous coordinates cornu court dead death degenerate detail dreamstime euler extinct extinction fermat fibonacci fossil fossilized function gemstone geological geology geometric golden history hyperbolic isolated jurassic lituus logarithmic macro mineral monotonic nautilus number ochre orange paleontology polar polished prehistoric prehistory radius rather relic sagittal seashell shell skeleton spiral stone strictly structure symbol texture theodorus using vortex where would yellow

Spiral ( Dreamstime symbol ) Royalty Free Stock Photo

Sagittal court of a fossil ammonites. A two-dimensional spiral may be described most easily using polar coordinates, where the radius r is a monotonic continuous function of angle ÃÂ¸. The circle would be regarded as a degenerate case the function not being strictly monotonic, but rather constant.