page_title: Helicoid
hierarchical_section_title: Helicoid
context_page_description: The helicoid, after the plane and the catenoid, is the third minimal surface to be known.
context_section_description: The helicoid, after the plane and the catenoid, is the third minimal surface to be known.
caption: A helicoid with α = 1, −1 ≤ ρ ≤ 1 and −π ≤ θ ≤ π.