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Sign function. Signum function. In mathematics, the sign function or signum function (from signum, Latin for "sign") is a function that has the value −1, +1 or 0 according to whether the sign of a given real number is positive or negative, or the given number is itself zero. In mathematical notation the sign function is often represented as or .
A Linux-based system is a modular Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems.
Oracle Linux (abbreviated OL, formerly known as Oracle Enterprise Linux or OEL) is a Linux distribution packaged and freely distributed by Oracle, available partially under the GNU General Public License since late 2006. [5] It is compiled from Red Hat Enterprise Linux (RHEL) source code, replacing Red Hat branding with Oracle's.
curses (programming library) curses is a terminal control library for Unix-like systems, enabling the construction of text user interface (TUI) applications. The name is a pun on the term " cursor optimization". It is a library of functions that manage an application's display on character-cell terminals (e.g., VT100 ).
For example, it might be advantageous to formulate an intricate algorithm for positive values only, and take care of the sign only afterwards. Real sign function. The sign function or signum function extracts the sign of a real number, by mapping the set of real numbers to the set of the three reals {,,}.
Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model [4] database management system produced and marketed by Oracle Corporation . It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database ...
The Portable Operating System Interface ( POSIX; IPA: / ˈpɒz.ɪks / [1]) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems. [1] POSIX defines both the system and user-level application programming interfaces (APIs), along with command line shells and utility interfaces, for ...
Solaris is a proprietary Unix operating system originally developed by Sun Microsystems.After the Sun acquisition by Oracle in 2010, it was renamed Oracle Solaris.. Solaris superseded the company's earlier SunOS in 1993, and became known for its scalability, especially on SPARC systems, and for originating many innovative features such as DTrace, ZFS and Time Slider.