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Get flash to fully experience Pearltrees
KnightCite Citation Service
Use the publication information provided on the title page (not the cover) of the book. The copyright date is usually given on the back of the title page.Free Online Courses
OpenLearn - The Open University
Matrices, vectors, vector spaces, transformations. Covers all topics in a first year college linear algebra course. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.
Khan Academy
haxwell
Today's featured article SMS König was the first of four König class dreadnought battleships of the German Imperial Navy during World War I . König ( Eng: "King") was named in honor of Kaiser Wilhelm II of Germany . Laid down in October 1911 , the ship was launched on 1 March 1913. Construction on König finished shortly after the outbreak of World War I; she was commissioned into the High Seas Fleet on 9 August 1914.

