[GreenKeys] Happy Pi Day!

Dave Horsfall dave at horsfall.org
Tue Mar 13 21:03:46 EDT 2018


On Tue, 13 Mar 2018, Richard Knoppow wrote:

> Not sure of your notation, what does ** mean, power?.

Yes (from my FORTRAN days, then Perl etc).  Being a crypto bod, I use "^" 
to mean XOR (the fundamental crypto operation[*]).

> Is i the square root of -1?

Yes; an electrical engineer would've used "j", but I'm a mathematician :-)

[*]
Apart from the famed "NSA instruction" on the CDC series, of course.

-- 
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."


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