Literaturnachweis - Detailanzeige
| Autor/inn/en | Sher, David B.; Nataro, Dean C. |
|---|---|
| Titel | The Prosthaphaeretic Slide Rule: A Mechanical Multiplication Device Based on Trigonometic Identities |
| Quelle | In: Mathematics and Computer Education, 38 (2004) 1, S.37-43 (7 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0730-8639 |
| Schlagwörter | Calculus; Mathematics Instruction; Trigonometry; Mathematics Materials |
| Abstract | The typical precalculus book contains the obscure trigonometric identities known as the product-to-sum formulas. They usually get short treatment (or none) in a precalculus course because they are so rarely used. This is unfortunate since they have an interesting history. Before the invention of logarithms they were used to perform multiplications and divisions by a process known as prosthaphaeresis. Since the slide rule is a computational device based on logarithms, the authors wondered if a similar device based on prosthaphaeresis could be constructed. It can. They call it the "prosthaphaeretic slide rule". (ERIC). |
| Anmerkungen | MATYC Journal Inc., P.O. Box 158, Old Bethpage, NY 11804. Tel: 516-822-5475. |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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