Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).

×

Comment: Re:Matlab (Score 2) 180

by sophanes (#42806637) Attached to: Python Gets a Big Data Boost From DARPA

matplotlib already does this in conjunction with Numpy and Scipy - its plotting quality and flexibility compares favourably to Matlab.

Its biggest drawback is that it is pretty glacial even by Matlab's standards when rendering large datasets (think millions of points). I'm not sure whether matplotlib or the interactive backend is at fault, but anything DARPA can do to improve the situation would be welcome.

Comment: Re:James Webb (Score 2) 137

by sophanes (#37013536) Attached to: SETI Finds Funds For the Allen Telescope Array (For Now)
Read the original SETI report (NASA SP-419) - from its inception, SETI didn't expect to overhear information-bearing signals. Instead, it was looking for deliberately generated 'beacons' - high-powered, spectrally dense transmissions. These should be detectable over distances of the order of several thousand light-years.

Comment: Re:Respectfully disagree (Score 2, Interesting) 536

by sophanes (#23718527) Attached to: A History of Copy Protection
I seem to remember Autocad doing something like this. They used the dongle to decrypt a look-up table used in geometric transforms. If the LUT wasn't decrypted, subtle and cumulative errors would be introduced into the design which would only become noticeable after a week or two of use.

If used correctly, dongles are pretty damn hard to defeat. Ideally you use them to decrypt hunks of both your data and executable, then hide the significant decryption data amongst a blizzard of dummy calls to the dongle.

Ya'll hear about the geometer who went to the beach to catch some rays and became a tangent ?

Working...