Блоги: заметки с тегом maths

2025, the number

Robert — Mon, 30 Dec 2024 21:56:06 +0500

The number 25, as I brought up forn, has a magical appearance.

2025 is the first perfect square number year since 1936, and thus also the first year to be a product of two squares since then. 2025 = 45² = 9² × 5².

Coming back to 45², Donald Trump, the 45th president of the USA, will start his 2nd term in 2025 as the 47th president. 45 + 2 = 47.

2 + 0 + 2 + 5 = 9, which is the number of completion, the hightide of the material experience and a bridge to the spiritual. 9 holds the wisdom of 1 thru 8.

Likewise, 2025 is the sum of all cubes: 1³ + 2³ + ‹...› + 9³ = 2025.

Looking special!

A slogan for a lottery

Robert — Sat, 02 Mar 2024 12:08:07 +0500

Robert:

Play now. Win later¹

¹A lot later. Possibly never

Two minuses make a plus

Robert — Sat, 11 Mar 2023 16:44:52 +0500

Robert:

Two negatives making a positive is reflected aptly in typography: +

Bank fees

Robert — Thu, 02 Mar 2023 20:47:08 +0500

Robert:

Putting aside the issue of centralisation, cash is quite a good means-of-exchange. Transactions are private by default, work without digital technology, and do not require intermediaries.

This latter point is as important as the two former ones. Most banks have a transaction fee that nearly always goes unseen by the customer. Using cards instead of cash lets parasitic intermediaries amass money originally belonging to productive men and their families:

y = 100% × (100% − 2%)ⁿ, n being the number of card transactions

The banking cartel dreams of a cashless society because it will enable free reign over transaction fees, and thus the acceleration of the transfer of wealth. The Italian bank-terminal mandate and cash-transaction cap must be abolished.

Avoid banks whenever you can. If withdrawing cash, use the ATM twice to drive up the statistics: for example, withdraw 100 € two times instead of 200 € at once.

Luck

Robert — Tue, 17 Jan 2023 02:14:01 +0500

Robert:

Luck does not exist. Quoting Ron Swanson, luck is a concept invented by the weak to explain their failures.

There is, however, a cause for every effect, and an effect for every cause.

What is referred to as beginner’s luck is an invitation to continue the journey. I won my first-ever game of Go despite playing against a world champion doing his best.

The lottery is a tax on people who are bad at maths, and even more so on a supposedly lucky day: it is probabilistically unlikely to have multiple yuge unrelated events happen in a day. Althô I do suppose that one’s spiritual energy field reaching a certain frequency can make it more probable. Trust your gut.

2023, the number

Robert — Mon, 02 Jan 2023 21:59:47 +0500

Robert:

2023 = (2 + 0 + 2 + 3) × (2² + 0² + 2² +3²)².

2023 = 7 × 17 × 17. 71717 is a palindrome.

2023 + 2022 + 2021 = 6066.

25

Robert — Sun, 25 Dec 2022 17:08:57 +0500

Robert:

The number 25 has a magical appearance. 2 plus 5 equals 7, my lucky number. And, of course, 25 is 5².

No wonder Christmas is on the 25th.

Alternative math

Robert — Wed, 17 Jun 2020 17:54:01 +0500

Robert:

Being politically correct all the time is similar to being brain-dead:

A better abbreviation for sine & cosine

Robert — Sun, 28 Oct 2018 21:35:25 +0500

Robert:

For some weird reason the abbreviation for sine is sin and cos for cosine. This is madness compared to the beautiful and logical abbreviation for tangent and cotangent: tg and ctg respectively.

My proposal:

sine	si
cosine	csi
tangent	tg
cotangent	ctg

Quite obviously, I submitted them to my local ISO representative for review.