The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.
(c)1998-2002; (c)2002 by Gale. Gale is an imprint of The Gale Group, Inc., a division of Thomson Learning, Inc. Gale and Design and Thomson Learning are trademarks used herein under license.
The following sections, if they exist, are offprint from Beacham's Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.
The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.
All other sections in this Literature Study Guide are owned and copyrighted by BookRags, Inc.
Simple algebraic relationships that involve only two variables such as x and y are called elementary functions. In general, these can be denoted as y=f(x), where f symbolizes constants and operators on x. Basic examples of such a function would be y=2x or y=5x+1. It can be seen that these are easily evaluated given a value for x or y. that use a function of x as an are also considered to be elementary functions. These take the form y=ef(x) where f(x) is composed of the same type of constants and operations upon x as before. Again, knowing a value for x or y allows a solution to the to be determined. In addition, the inverse of exponential functions, the logarithmic functions, are included. Since can be expressed as equations that include exponential functions and their inverse, such as 2cosx=eix+e-ix, the trigonometric functions must also be included as elementary functions. Any combinations of the above functions, complex as those combinations might seem are still elementary functions.
The of an elementary function is always an elementary function, but the inverse is not always true. Not all elementary functions can be obtained by derivation. Some examples of non-elementary functions include the, the and others.