Using letters instead of numbers
By: prepared by Michael Hussey for the Technology Course Team
Contributors: Open University. Technology Foundation Course Team
Series: Technology Foundation Course, Unit 4, Supplement
Publisher: Open University Press
Published: 1971
Place of publication: Bletchley, Eng.]
Language: eng
Number of pages: 23
ISBN-13: 9780335025077
Subjects: Algebra; Algèbre