y = a·cosh(x/a) — Catenary Vase

The Catenary Curve Vase

The curve of a hanging chain — structural perfection.

Formula: y = a × cosh(x/a)

Galileo thought it was a parabola. Leibniz proved otherwise. The catenary appears in power lines, suspension bridges, and now, your flower arrangements.

Robust enough for heavy sunflower heads.