Classifying Cubics

Synopsis: A computer exploration of cubic curves, scaling and translating them to see the possibilities. What sort of number is the square root of 2? Numbers can be considered from the point of view of either geometry or calculation. It is easy enough to construct, in principle, a lengthy square root of 2, but a calculator can only arrive at an approximate value. Contrasts these two points of view to develop the idea of irrational numbers such as square root of 2 using the number line and nests of intervals.
Series: Mathematics: A Foundation Course, Course M101
Language: English
Country: Great Britain
Medium: Video; Videocassette. Standard formats. col. 25 min.
Year of production: 1988
Availability: Sale; 1994 sale: (M101) £60.00 (+VAT +p&p) combined with three other programmes from the course on a single cassette.
Subjects: Mathematics
Keywords: numbers

Name: Open University Worldwide
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Notes: NB. As of May 2016 Open University Worldwide are no longer distributing DVDs. They have posted this message on their website: ‘Unfortunately Open University Worldwide Limited has decided that product sales are no longer viable given the reduced funding to Higher Education institutions and diminishing demand for the products we have traditionally stocked. At present the Open University Students Association (OUSA) will continue to sell the "Good Study Guide", and we are in discussion with other possible distributors to continue to make The Open University’s products available for purchase. As soon as we have any information on other channels of distribution we will update this notice’. Some products are still available via second hand dealers on Amazon.co.uk

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