Commutativity

7th October 2019 OldTrout 0

A binary operation is said to commute if the order of the operands does not alter the result. In the real numbers, , the following commutative laws hold : for all for all Although these [more…]

Crossword No. 105

15th February 2020 0

First correct entry out of ‘the hat’ wins a GP mug and keyring! Email entries to me by 6.00 pm Sunday, subject ‘Crossword’. Contact here on email Last week’s winner. 104 – Audrey’s Daughter. Answers [more...]
Savings must come first – cash is a mere diversion, part two

31st March 2020 0

I am writing this in South Africa, where its currency, the rand, provides a useful illustration of the effects of monetary inflation described in Part 1. When I was last here, three years ago, the [more...]
The Unseen Path – Part Fifty Five

30th June 2018 0

Andy Bowson was back at the control centre by nine, starting to piece together the reports from the various raids around the country prior to a meeting with his superiors at tea time. Days of [more...]
The Persuasive Power of The Narrative™

28th June 2018 0

Whenever I go to a supermarket and look for washing powder, I am influenced by advertising, even if I think I’m not. I’m intelligent, I know when this ad thing kicks in, I can recognise [more...]
The Unseen Path – Part Twenty Two

10th March 2018 0

They were ready to leave, later than planned, cleaning up behind them took longer than they had assumed. It always did and for all Alan’s faults he was thorough, not in the least relaxed about [more...]