Tags » Primes

Canon CN-E Primes - An In-Depth Look

Canon announced their CN-E Primes back in 2011 with only a 24, 50, and 85mm. They quickly added the 14, 35, and 135mm to the line-up providing cinematographers an set of six lenses from 14 through 135mm. 3,842 more words

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Notes from date night

Stiff gin drinks, not sweet or bitter,
Pimento cheese wontons,
Well portioned plates of BBQ
With a side of primes,
Quadratic residues,
And problems that plagued Gauss.

Sarah Zureick-brown

Veydra, First To Offer M4/3 Cinema Primes

Until now, shooting cinema on a Micro 4/3 camera meant you were using still photo lenses or lenses that were adapted or modified for motion picture use. 836 more words

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A new Mersenne prime confirmed today! Well, sort of . . . .

Saw this tweet from Chris Long today:

M(32582657) proven to be 44th Mersenne Prime. Great Internet Mersenne Prime Search – PrimeNet http://t.co/WWGA7FHFsQ

— Christopher D. Long (@octonion) …

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Primes, Logs, and showing some modern math to kids

Earlier in the week I saw a nice exchange on twitter between Michael Pershan and Justin Lanier.   Sorry for the cumbersome tweet linking, but here’s the part of the exchange that caught my attention: 984 more words

Fun with abundant numbers

A few weeks ago Tracy Johnston Zager asked about this problem on twitter (and these embedded tweets should be amusing during Halloween week!):

Q from a 4th grade teacher I admire: "What do you think of questions like this: 'What is the sum of all the factors of 35?'" …

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Maths Challenge (1)

This is a bit of an experiment. If I get a good response to this, I may do this again sometime. I thought that a bit of maths will not do much harm to the blog, especially as it is something else I enjoy doing. 320 more words

Maths