the seperate physics package update is a great welcome.  i wonder if the scientific constants paxkage could incorporate the same idea.  i can see why the elements properties were put there but it might have made more sense in the physics package.  anyways, the element proprties are continually being updated so it would make sense for small updates to occurr.  any thoughts.

The latest Maple 17 bashing from Mathematica appears on their comparison webpage.

The first thing that paid my attention in their "comparison" was their comparison of the Mobius project to the Mathematica demonstrations project.  To my knowledge the Mobius project is an extension to application center which I thought was the same as Mathematica demonstration project anyways ???

Anyways anyone have thoughts on this recent comparison?

Comments to posts should also have the option to up vote.

I came across a plot3d where a non continuous function looked continuous. One way to confirm if it was indeed coninuous was to use style=point

with(plots):
plot3d(Im(sqrt(x+I*y)), x = -2 .. 2, y = -2 .. 2)

plot3d(Im(sqrt(x+I*y)), x = -2 .. 2, y = -2 .. 2, style = point, grid = [70, 70])

Throughout evolution, natural selection is one source of genetic change in populations. However it is possible for a mutation to become common in a population entirely by accident through a phenomenon known as genetic drift. 

It works most strongly in small populations or dramatically fluctuating populations.  When non-lethal mutations occurs it is possible not just because of adaptation but by chance it will have more offspring than it's neighbors.