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PASCAL-XSC - Language Reference with Examples (Paperback, Softcover reprint of the original 1st ed. 1992): G.F. Corliss PASCAL-XSC - Language Reference with Examples (Paperback, Softcover reprint of the original 1st ed. 1992)
G.F. Corliss; Rudi Klatte; Translated by R. Klatte; Ulrich Kulisch; Translated by U. Kulisch; …
R1,587 Discovery Miles 15 870 Ships in 10 - 15 working days

The programming language PASCAL-XSC (PASCAL eXtension for Scientific Computation) significantly simplifies programming in the area of scientific and technical computing. PASCAL-XSC provides a large number of predefined data types with arithmetic operators and predefined functions of highestaccuracy for real and complex numbers, for real and complex intervals, and for the corresponding vectors and matrices. Thus PASCAL-XSC makes the computer more powerful concerning the arithmetic. Through an implementation in C, compilers for PASCAL-XSC are available for a large variety of computers such as personal computers, workstations, mainframes, and supercomputers. PASCAL-XSC provides a module concept, an operator concept, functions and operators with general result type, overloading of functions, procedures, and operators, dynamic arrays, access to subarrays, rounding control by the user, and accurate evaluation of expressions. The language is particularly suited for the development of numerical algorithms that deliver highly accurate and automatically verified results. A number of problem-solving routines with automatic resultverification have already been implemented. PASCAL-XSC contains Standard PASCAL. It is immediately usable by PASCAL programmers. PASCAL-XSC is easy to learn and ideal for programming education. The book can be used as a textbook for lectures on computer programming. It contains a major chapter with sample programs, exercises, and solutions. A complete set of syntax diagrams, detailed tables, and indices complete the book.

Fundamentals of Numerical Computation (Computer-Oriented Numerical Analysis) - (Computer-Orientated Numerical Analysis)... Fundamentals of Numerical Computation (Computer-Oriented Numerical Analysis) - (Computer-Orientated Numerical Analysis) (Paperback, Softcover reprint of the original 1st ed. 1980)
R. Albrecht; Edited by G. Alefeld; Assisted by U. Kulisch; Edited by R. Grigorieff; Assisted by F. Stummel
R1,577 Discovery Miles 15 770 Ships in 10 - 15 working days

This volume contains mainly a collection of the invited lectures which were given during a conference on "Fundamentals of Numerical Computation," held in June, 5 - 8, 1979, on the occasion of the centennial of the Technical University of Berlin. About hundred scientists from several countries attended this conference. A preceding meeting on "Fundamentals of Computer-Arithmetic" was held in August, 1975, at the "Mathematisches Forschungsinstitut Oberwolfach." The lectures of this conference have been published as Supplementum 1 of Computing (Editors R. Albrecht, U. Kulisch). After a period of four years of active research the purpose of the Berlin-Conference was to give a broad survey of the present status of the closely connected topics Interval Analysis, Mathematical Foundation of Computer Arithmetic, Rounding Error Analysis and Stability of Numerical Algorithms and to give prospects of future activities in these fields. Besides the invited lectures 35 short com munications, each of 20 minutes length, were given. We gratefully acknowledge the support of the President of the Technical University and of his Aussenreferat as well as of the Department of Mathematics. Besides these institutions financial support was given by AEG-Telefunken, Berlin, Allianz Lebensversicherungs A.G., Stuttgart, CDC, Hamburg/Berlin, DAT A 100, Munchen, Gesellschaft von Freunden der TU Berlin e.V., Berlin and Siemens AG., Berlin. Finally we express our thanks to Mrs. G. Froehlich and Mrs. B. Trajanovic, who managed the paper work before, during and after the conference."

Grundlagen der Computer-Arithmetik (German, Paperback): R. Albrecht, U. Kulisch Grundlagen der Computer-Arithmetik (German, Paperback)
R. Albrecht, U. Kulisch
R1,666 Discovery Miles 16 660 Ships in 10 - 15 working days

Obwohl man annehmen kann, daB das gerundete Rechnen so alt ist wie das Rechnen mit Zahlen iiberhaupt, hat es eine ausgedehnte und systematische Anwendung erst durch die neuzeitlichen Digitalrechenanlagen gefunden. Die zwangslliufige Begrenzung sowohl des Gesamtspeichers wie der Bitanzahl der einzelnen Speicherzellen und Register bedingt bei jeder Zahldarstellung eine Einschrlinkung eines theoretischen, idealisierten, unendlichen Zahlenbereiches auf eine endliche Teilmenge, in der die realen arithmetischen Operationen konstruktiv erfolgen. Infolgedessen stimmen die Regeln fiir dieses "gerundete" Rechnen im realen Bereich mit denen des Rechnens im idealen Bereich nicht iiberein und verschiedene der klassischen Eigenschaften arithmetischer Ver- kniipfungen, beispielsweise im Korper der rationalen Zahlen die Assoziativitlit und Distributivitlit, gehen bei Rundung verloren. Der gerundete Bereich sowie die konstruktiv auszufiihrenden arithmetischen Operationen sind natiirlich nicht Selbstzweck, sondem sie sollen in zu definierendem Sinne eine Approximation zunI idealen Bereich und zu den idealen arithmetischen Operationen darstellen. Seit einigen lahren bestehen nun Versuche und Teilergebnisse zu einer axio- matischen Begriindung und einer Theorie des gerundeten Rechnens. Diese bezie- hen sich einerseits auf die Konstruktionsvorschrift und deren Realisierung, nach der den idealen Zahlen bzw. einer konstruktiv darstellbaren Untermenge hier- von gerundete Zahlen zuzuordnen sind, urn gewisse Kriterien zu erfiiIlen, z. B. Minimisierung der Abweichung des Nliherungsergebnisses yom exakten Ergeb- nis bei Auswertung eines arithmetischen Ausdruckes mit verschiedenen Daten im statistischen Mittel, Ausgabe eines moglichst "kleinen" Zahlenbereiches, in dem das Ergebnis einer idealen Rechnung mit Sicherheit (Intervall-Arithmetik) oder mit vorgegebener Wahrscheinlichkeit liegt.

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