NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Are we all doing our math correctly?
From: Lu Abel
Date: 2017 Jul 12, 16:24 +0000
From: Herman Dekker <NoReply_Dekker@fer3.com>
To: luabel@ymail.com
Sent: Wednesday, July 12, 2017 5:25 AM
Subject: [NavList] Re: Are we all doing our math correctly?
From: Lu Abel
Date: 2017 Jul 12, 16:24 +0000
I'm startled to see square roots in 4th place and not in second place. Isn't a square root simply exponentiation to the 1/2 power??
I'll also note that the items under a square root are generally treated as in parentheses, ie, you evaluate everything under the square root sign (including its horizontal bar) before taking the root.
From: Herman Dekker <NoReply_Dekker@fer3.com>
To: luabel@ymail.com
Sent: Wednesday, July 12, 2017 5:25 AM
Subject: [NavList] Re: Are we all doing our math correctly?
Just for then fun one other phrase
In The Netherlands I learned at school, 55 years before, the phrase.
Meneer Van Dalen Wacht Op Antwoord. Free translated: Mister Van Dalen Waits On Answer
1e Machtsverheffen ^
2e Vermenigvuldigen ·
3e Delen /
4e Worteltrekken √
5e Optellen +
6e Aftrekken -
2e Vermenigvuldigen ·
3e Delen /
4e Worteltrekken √
5e Optellen +
6e Aftrekken -
But then there where not yet electronic calculators or computers,
they work on there own rules, from left to right.
they work on there own rules, from left to right.
regards
HermanD
