Reddit AMA happening now here https://twitter.com/jamesgrime/status/527204677050703872
Roots and Branches
by Vlad Alexeev
Hey, apparently I’ll be doing one of those Reddit Ask Me Anythings at 9pm GMT (5pm ET). I’ll try and provide a link later.
Adam Cohen and his group are using genetically-modified neurons that light up when the cells activate to see the communication …Tags: brain, New Scientist
The New York Times takes a data-centric look at the progress of the Affordable Health Care Act here in the …Tags: health care, New York Times
(Click on the comic if you can't see the full image.) (C)Copyright 2014, C. Burke.It's got a Killer soundtrack and high Rotten Tomatoes score!
Affine transformations preserve parallel lines, and include rotations, scaling, shears and translations. Linear transformations can’t perform translations, but this can be achieved if we go to a higher dimension.
In this animation, a planar (2D) shape lying on the plane z = 1 is translated by means of a linear transformation in three dimensions: a shear along the z axis.
Rotations can be performed normally, also around the z axis. For rotations around any other axis parallel to