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Making the Complex Simple with CEP

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Old 07-17-2007
Making the Complex Simple with CEP
timbass
Tue, 17 Jul 2007 06:57:48 +0000
Many agree that the one of the most important aspects of complex event processing is making the power and flexibility of CEP analytics readily accessible*to non-programmers.** This important cornerstone of CEP is discussed in this excellent GCN article, Stream of Consciousness, mentioning StreamBase, Coral8, Progress Apama, and a new vendor in the CEP field, Truviso.
So, with CEP engines rapidly growing in popularity, it is natural that the ease of design time configuration is a major consideration for CEP customers.****Declarative programming languages and models*are often discussed in the context of reducing the costs and complexity of implementing new applications.**** It follows that software vendors who manage to simplify their design time environment*with easy-to-use graphical interfaces that permit users to easily express complex ideas will have a leg up on their competition.



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LEARN ABOUT POSIX

cpowf

CPOW(P) 						     POSIX Programmer's Manual							   CPOW(P)

NAME

       cpow, cpowf, cpowl - complex power functions

SYNOPSIS

       #include <complex.h>

       double complex cpow(double complex x, double complex y);
       float complex cpowf(float complex x, float complex y);
       long double complex cpowl(long double complex x,
	      long double complex y);

DESCRIPTION

       These functions shall compute the complex power function x**y, with a branch cut for the first parameter along the negative real axis.

RETURN VALUE

       These functions shall return the complex power function value.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       cabs() , csqrt() , the Base Definitions volume of IEEE Std 1003.1-2001, <complex.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								   CPOW(P)