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C-XSC: A C++ Class Library for Extended Scientific Computing by Prof. Dr. Ulrich Kulisch, Dr. Rudi Klatte, Dipl.-Math.

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By Prof. Dr. Ulrich Kulisch, Dr. Rudi Klatte, Dipl.-Math. Andreas Wiethoff, Dr. Christian Lawo, Dipl.-Math. Michael Rauch (auth.)

C-XSC is a device for the advance of numerical algorithms providing hugely exact and immediately tested effects. It offers a lot of predefined numerical facts kinds and operators. those kinds are carried out as C++ sessions. therefore, C-XSC permits high-level programming of numerical functions in C and C++. an important positive factors of C-XSC are: genuine, complicated, period, and intricate period mathematics; dynamic vectors and matrices; subarrays of vectors and matrices; dotprecision information varieties, predefined mathematics operators with greatest accuracy; typical features of excessive accuracy; a number of precision mathematics and traditional capabilities; rounding regulate for I/O facts; mistakes dealing with, and library of challenge fixing exercises with automated outcome verification. hence, C-XSC makes the pc extra strong in regards to the mathematics. C-XSC is straight away usable via C programmers, effortless to benefit, user-extendable, and should even be mixed with different instruments. The ebook can be utilized as a textbook and as a reference guide. It contains an advent to complex laptop mathematics, a bankruptcy describing the programming languages C and C++, the most important bankruptcy "C-XSC Reference", pattern courses, and indices.

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J++) A[i] [j] = i+j; The use of the comma operator allows a very compact notation but often leads to unexpected errors. Therefore, it should only be used when actually needed. The do Loop In the for and the while loops, the condition is evaluated at the beginning of the loop. In a do loop, the statement is executed first before checking the condition. 1 33 The statement is evaluated until the expression becomes O. The do statement is used whenever the statement must be executed at least once. Break and continue Frequently, it is convenient to be able to control loop exits other than by testing at the top or bottom.

These surveys of C and C++ in this chapter serve as preludes to the detailed description of C - XSC following the chapter C-XSC Reference. 1 Overview c++: Superset of C The programming language C++ [Ell90, Str91] was developed by Bjarne Stroustrup at the Bell Laboratories at the beginning of the 1980's as a superset of C. Programs written in C may also be compiled in C++. Furthermore, all control structures of C such as the for, if, or switch statements and all intrinsic data types such as int, Boat, or double are available in C++, and have the same meanings.

No predefined operations manipulate a whole vector or a string. A struct can only be copied or used as an argument or a return value of a function. Memory management in C includes the static definition of variables and the internal stack management used for handling local variables in functions. C contains neither an input/output nor a predefined file handling concept. Instead, a standardized collection of functions provides these abstract mechanisms. The limited language size of C makes it relatively simple to port the language to different computers.

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