Totient Function | Going Postal

Euler’s Totient Function

6th August 2018 OldTrout 0

Euler’s totient function counts the number of positive integers up to that are relatively prime to , where is considered to be relatively prime to all . These numbers are called the totatives of . [more…]

Humbug

3rd October 2019 0

Definition: Dishonest language or behaviour that is intended to trick people The recent decision by the Supreme Court to nullify the prorogation of Parliament by Boris Johnson is deeply disturbing in many respects. The level [more...]
Larry’s Diary Week Fourteen

8th December 2019 0

Monday As usual it’s been a fairly uneventful weekend here on the Downing Street estate. I caught sight of a mouse in the garden yesterday, but it shot into the Foreign Office so I left [more...]
Shunting Puzzle, Part Three

2nd January 2018 2,705

Christmas Lull – Shunting on slowly Last time you saw a relatively quick transformation of my winter project – from bare shelf which was hollowed out, wired up, a baseboard added, ramp, rails and magnorail [more...]
Tilda and the Witches 5.6

12th August 2018 0

ACT 5 SCENE 6 The Royal Palace at Purdonium. Music. Enter COURTIERS, dancing. Enter FELIX, TILDA, VULPECULA, JESSICA, ETTY, VISCUS and KEVIN.
Postcard from Bloodstock 2018

26th July 2019 0

I know, I know – in two months you’ll be seeing another piece from me. ‘Postcard from Bloodstock 2019’. What can I say, this is one of those posts I had been meaning to finish [more...]