Regular homotopies in the plane. No. 2 (TEFC)

United States, 1972

Film
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Episode of Series “Geometry”.
Uses computer-generated animation in order to illustrate the Whitney-Graustein theorem - two regular curves in the plane are regularly homotopic if, and only if, they have the same rotation number.

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Collection

In ACMI's collection

Credits

director

William Hansard

production company

International Film Bureau

Duration

00:18:28:00

Production places
United States
Production dates
1972

Appears in

Geometry

Group of items

Geometry

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Collection metadata

ACMI Identifier

012692

Language

English

Subject categories

Animation

Animation → Computer animation

Crafts & Visual Arts → Computer graphics

Education, Instruction, Teaching & Schools → Geometry - Study and teaching

Education, Instruction, Teaching & Schools → Mathematics - Study and teaching

Educational & Instructional

Educational & Instructional → Educational films

Educational & Instructional → Instructional

Mathematics, Science & Technology → Mathematics - Study and teaching

Short films

Short films → Short films - United States

Sound/audio

Sound

Colour

Colour

Holdings

16mm film; Access Print (Section 1)

Please note: this archive is an ongoing body of work. Sometimes the credit information (director, year etc) isn’t available so these fields may be left blank; we are progressively filling these in with further research.

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If you would like to cite this item, please use the following template: {{cite web |url=https://acmi.net.au/works/75331--regular-homotopies-in-the-plane-no-2-tefc/ |title=Regular homotopies in the plane. No. 2 (TEFC) |author=Australian Centre for the Moving Image |access-date=18 May 2025 |publisher=Australian Centre for the Moving Image}}