Parabolic arch

（重定向自Parabolic vault）

Parabolic arches in Celler de Sant Cugat

The Golden Gate Bridge's parabolic arches

A parabolic arch is an arch, shaped like a parabola. While a parabolic arch looks "close" to a catenary arch, the parabola and the catenary are different curves: A parabola is a quadratic function, and a catenary is the hyperbolic cosine, cosh(x), a sum of two exponential functions.

单词	Parabolic vault
释义	Parabolic vault 英语百科 Parabolic arch （重定向自Parabolic vault） A parabolic arch is an arch, shaped like a parabola. While a parabolic arch looks "close" to a catenary arch, the parabola and the catenary are different curves: A parabola is a quadratic function, and a catenary is the hyperbolic cosine, cosh(x), a sum of two exponential functions.
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