Wednesday, 8 August 2018

I Wonder


After yesterday going on about Roman Numerals I thought what is the Roman Numeral for Zero? It turns out there isn't one, but medieval scholars used the word "nulla" to signify zero. In IT we used to be familiar with the concept of "null" (and those who know what they are talking about still are).

Zero is the numeric representation of no items, as in "I have zero pounds in my bank account", but it is a numeric value, it is one less than one or one more than minus one, though this summation could be done with any numbers. The formula:

x - x = 0

is always true, though mayb Stephen Hawking, Andrew Wiles or someone else could possibly dispute that successfully with me.

Null on the other hand is a complese absence, it cannot be used in computation whereas zero can, and will often cause systems to crash if returned as an answer. Null is the bane of any programmer's life, in that it is often valid but you can't actually do anything with it, and no doubt I will come across it in some calculation today.

I'm still feeling absolutely shattered and  despite have nine hours in bed last night after watching Black Sails and Nightcrawler, I didn't feel up to walking into work, so though this would be the first time in a long time that I walked into work having done less that a thousand steps.

Then I decided to get off the bus at the BBC and walk down Barrack Road from there thus giving me a couple of thousand steps.

I thought I'd include "Countdown" by Lindsey Buckingham from his album "Out of the Cradle" as I love the song and it's vaguely numerically themed.

The sun is shining so it should be a good day.


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