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In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 103, the logarithm base of 1000 is 3, or log10 (1000) = 3. The logarithm of x to base b is denoted as logb (x), or without parentheses, logb x. When the base is clear from the context ...
Single-player. Portal is a 2007 puzzle - platform game developed and published by Valve. It was released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield ), and Nintendo Switch . Portal consists primarily of a series of puzzles ...
A captive portal is a web page accessed with a web browser that is displayed to newly connected users of a Wi-Fi or wired network before they are granted broader access to network resources. Captive portals are commonly used to present a landing or log-in page which may require authentication, payment, acceptance of an end-user license agreement, acceptable use policy, survey completion, or ...
Cave Johnson is a fictional character from the Portal franchise first introduced in the 2011 video game Portal 2. He is voiced by American actor J. K. Simmons and created in part by Portal 2 ' s designer Erik Wolpaw. He is referenced by a computer username in the first game and appears indirectly in Portal 2. Johnson serves as a guide to the player-character Chell as she explores an abandoned ...
The Long Island Rail Road ( reporting mark LI ), often abbreviated as the LIRR, is a railroad in the southeastern part of the U.S. state of New York, stretching from Manhattan to the eastern tip of Suffolk County on Long Island. The railroad currently operates a public commuter rail service, with its freight operations contracted to the New York and Atlantic Railway. With an average weekday ...
MTA Regional Bus Operations ( RBO) is the surface transit division of the Metropolitan Transportation Authority (MTA). It was created in 2008 to consolidate all bus operations in New York City operated by the MTA. As of February 2018, MTA Regional Bus Operations runs 234 local routes, 71 express routes, and 20 Select Bus Service routes. Its fleet of 5,840 buses is the largest municipal bus ...
This file lists all currently mounted filesystems along with their initialization options. mtab has a lot in common with fstab, the distinction being that the latter is a configuration file listing which available filesystems should be mounted on which mount points at boot time, whereas the former lists currently mounted ones, which can include manually mounted ones not listed in fstab ...
Single sign-on. Single sign-on ( SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems. True single sign-on allows the user to log in once and access services without re-entering authentication factors. It should not be confused with same-sign on (Directory ...