February 2016 archive

Feb 06 2016

iRobot to Sell its Defense and Security Business

iRobot 710 Kobra

In a press release yesterday, iRobot, maker of the impossibly cute Roomba robot vacuum cleaners, announced that they are emancipating their Robot Defense & Security (D&S) unit. The yet-to-be-named new company will continue to serve the current D&S market of defense, law enforcement, and industrial organizations. The existing D&S management team will continue to lead the …

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Feb 02 2016

Learning Python by Mark Lutz

Title: Learning Python Author: Mark Lutz Genre: Computers Publisher: O'Reilly Media; Fifth Edition edition (July 6, 2013) Release Date: July 6, 2013 Pages: 1594 Get a comprehensive, in-depth introduction to the core Python language with this hands-on book. Based on author Mark Lutz’s popular training course, this updated fifth edition will help you quickly write …

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Feb 01 2016

Binary Signed Integers – Signed Magnitude Shortcomings

I previously discussed the signed magnitude solution to representing signed integers as binary strings and pointed out that while it had the advantage of being simple, it also has some disadvantages. For starters, N-bit signed magnitude integers have two representations for zero: positive zero (a bitstring with N zeros) and negative zero (a bitstring with …

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