# trigonometric functions

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Related to trigonometric functions: trigonometry

## trigonometric functions

[¦trig·ə·nə¦me·trik ′fəŋk·shənz]
(mathematics)
The real-valued functions such as sin(x), tan(x), and cos(x) obtained from studying certain ratios of the sides of a right triangle. Also known as circular functions.
References in periodicals archive ?
Even though mathematics education in Australia varies considerably between various States due to the different education systems in place in each State, the trigonometric functions and subsequently solving trigonometric equations including the periodicity of those functions are included in the various levels of mathematics learned in Years 11-12.
It would be quite remarkable to thus obtain the continued fraction on one side and the trigonometric function on the other side.
A lack of support for trigonometric functions within the optimization model reduces the applicability of the BR algorithm for solving NTPs.
In order to characterize the extremals for (4), we use generalized trigonometric functions, which we now briefly define.
Again, we can employ Euler's formula to rewrite the trigonometric functions in terms of exponentials, namely, using [e.
The west, too, had equally dedicated zealots; Rheticus, who was mentored by Copernicus, along with a team of four others, in a labor of twelve years, generated 388,800 entries of tables for the six standard trigonometric functions to fifteen significant digits in the last seven hundred pages of his Opus Palatinum.
By the 10th century Islamic mathematicians were using all six trigonometric functions, had tabulated their values, and were applying them to problems in spherical geometry.
Schenk begins with an explanation of the real number line and guides readers through instructions on multiplication division and trigonometric functions where he unveils the mysteries of triangles.
al 1992) (FLN) has a flat architecture, with predefined basis functions like the trigonometric functions, algebraic polynomials, chebyshev polynomials and Hermite polynomials.
In Section 2 we outline the early history of logarithms and its affinity to trigonometric functions, and prosthaphaeresis (the predecessor of logarithms).
Wilson bases are constituted by trigonometric functions multiplied by translates of a window function that, in turn, is an atom of Gabor tight frame.
If the characteristic roots are complex conjugates of each each other, we can write the general solution in terms of the generalized expontential and trigonometric functions (see [2] [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII.

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