Canon mathematicus seu ad triangula

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Canon mathematicus seu ad triangula

work by Viète

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discussed in biography

In François Viète
Viète’s Canon mathematicus seu ad triangula (1579; “Mathematical Laws Applied to Triangles”) is probably the first western European work dealing with a systematic development of methods—using all six trigonometric functions—for computing plane and spherical triangles. Viète has been called “the father of modern algebraic notation,” and…
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trigonometry tables

In trigonometry table
…all six trigonometric functions in Canon Mathematicus (1579). The value of this work was not, however, in the tables, in which he calculated the functions at 1′ increments, accurate to five decimal places. Instead, Viète’s work was important because he had discovered various trigonometry relationships with which he demonstrated how…
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