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Maples are trees or shrubs of the genus Acer. They are variously classified in a family of their own, the Aceraceae, or (together with the Hippocastanaceae) included in the Sapindaceae. This is a debate of very long standing, and Angiosperm Phylogeny Group favours a wide circumscription, as a matter of style.

Maples are distinguished by opposite leaf arrangement. The leaves are usually palmately lobed, although palmate compound, pinnate compound, pinnate veined or unlobed shapes occur. The flowers are regular, pentamerous, and borne in racemes, corymbs, or umbels. Their distinctive fruits occur in pairs, called keys (more generally known as samaras), shaped to spin as they fall and carry the seeds a considerable distance on the wind. The derivation of the genus name "acer" is uncertain, as it is a very old name. One of the options is that derives from the Latin acris (sharp), from the hardness of the wood, supposedly used for spears in the past.

The leaves in most species are palmately veined and lobed, with 3-9 veins each leading to a lobe, one of which is in the middle. Several species, including the Paperbark Maple Acer griseum, Manchurian Maple Acer mandshuricum, Nikko Maple Acer maximowicziana, and Three-flower Maple Acer triflorum, have trifoliate leaves. The Manitoba Maple (Acer negundo) has pinnately compound leaves that may be simply trifoliate or may have 5, 7, or rarely 9 leaflets. One maple, the Hornbeam Maple Acer carpinifolium, has pinnately-veined simple leaves that resemble those of hornbeams.

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Maplesoft - Developers of Maple, an advanced mathematics and computer algebra software package including symbolic and numeric computations and web connectivity, widely used in education, research and industry; also other mathematical software products.
Meta Description: [ Maplesoft is a world leader in mathematical and analytical software. The Maple system embodies advanced technology such as symbolic computation, infinite precision numerics, innovative Web connectivity and a powerful 4GL language for solving a wide range of mathematical problems encountered in mo... ]

Adept Scientific - Suppliers of scientific and mathematical software, with publications, training and seminars. Maple specialists. On-line magazine, free downloads, ordering.
Meta Description: [ Maple from Adept Scientific - Looking for a source for Maple maths software? Adept has all the information you need. ]

Calculus and Differential Equations with Maple V - The online texts listed serve as supplements for studying Calculus and Differential Equations.

Computing with Maple - A book by Francis Wright. Contents and preface (PDF), solutions to many exercises as Maple worksheets, animated graphics, errata and supplements.
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Experiments in Mathematics Using Maple - Interactive Maple worksheets developed for the two senior high school years, associated with the book Experiments In Mathematics Using Maple (Springer-Verlag, 1995) by C.T.J. Dodson and E.A. Gonzalez.

Hypertext Maple Tutorial - By Peter Monk, University of Delaware.

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Maple Applications Center - A forum for Maple users to share their solutions to problems in industry and research. Includes Maple code, worksheets, and an online tutorial.

Maple at IU. - Includes tutorials, reviews, where to find it, and other links.
Meta Description: [ Links to information about facilities and services available for supercomputing, data analysis, visualization, and storage at IU ]

Maple at MIT - Maple at MIT Home Page. Geared towards use of Maple on MIT's Athena computing environment, but includes several links to Maple resources.
Meta Description: [ Maple at MIT Home Page. Maple on Athena; where to find documentation, training, and help; other resources. ]

Maple Essentials Tutorial - A user-friendly, online tutorial on basic Maple functionality, including algebraic manipulations, equation solving, 2D and 3D plotting and defining functions. Designed by the Mathematics Department at Seattle Central Community College.

404 Maple Explorations for Differential Calculus - Maple V.4 worksheets for use with a course at Georgia Tech.

Maple Summer Workshop 2002 - Waterloo, Ontario, Canada; 28--30 July 2002. On-line registration.
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Maple User Group (MUG) - A moderated electronic mailing for Maple users to discuss applications, problems and issues. Digests dating back to 1989 are available by ftp.

Maple User Group Answers - Contributions of the MMUG, maintained at Aachen.

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MaplePrimes - Downloadable add-on packages for Maple, available to Maplesoft customers as part of the Extended Maintenance Plan (EMP) subscription.

Mark van Hoeij's Maple Code - Source code and documentation for contributed packages, some included with Maple, some still under text. Includes algcurves, diffop, kovavicsols.

Multivariable Calculus with Maple - Lecture notes by Carlos C. Rodriguez, State University of New York at Albany.

Resources for Students - A free online resource for student users offering course help, Maple tutorials and graphics.
Meta Description: [ Maplesoft Products. For over 25 years, Maplesoft has been delivering powerful tools for any application that requires math. Select from the following products to find out more about how Maplesoft products can help you. ]

Symbolic Computation Group, University of Waterloo - Research and development of algorithms for computer algebra, including both symbolic computation and hybrid symbolic-numeric computation. The algorithms developed are incorporated into the Maple computer algebra system. Publications, software, meetings, people.

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