Circular Functions
المؤلف:
Abramowitz, M. and Stegun, I. A.
المصدر:
"Circular Functions." §4.3 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover
الجزء والصفحة:
...
1-10-2019
1912
Circular Functions
The functions describing the horizontal and vertical positions of a point on a circle as a function of angle (cosine and sine) and those functions derived from them:
Circular functions are also called trigonometric functions, and the study of circular functions is called trigonometry.
REFERENCES:
Abramowitz, M. and Stegun, I. A. (Eds.). "Circular Functions." §4.3 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 71-79, 1972.
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