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" ... in the algebra course and exclude sin x or tan x. All alike are pieces of symbolism invented for the description and interpretation of facts of the external world. Each represents a typical kind of function. To each corresponds a specific form of... "
The Teaching of Algebra (including Trigonometry) - 20. lappuse
autors: Sir Thomas Percy Nunn - 1914 - 616 lapas
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The Teaching of Algebra (including Trigonometry)

Sir Thomas Percy Nunn, Thomas Percy Nunn - 1914 - 616 lapas
...soon as the symbols of the trigonometrical ratios are recognized as capable of entering into formulaB and of being manipulated they should be regarded as...the graphic symbol of the function. Both algebra and trigono• metry would gain by fusion : the former through an added variety and richness in the illustrations...
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The Teaching of Algebra (including Trigonometry)

Sir Thomas Percy Nunn - 1919 - 616 lapas
...of algebra. There is, indeed, no principle, except the invalid principle of formal segrega2 * tion, upon which we can include the study of x" or of a*...Both algebra and trigonometry would gain by fusion : the»former through an added variety and richness in the illustrations of its main themes ; the latter...
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