A lot of tweets about
#PalindromeDay
miss that 02 February 2020 is a palindrome in USA, UK and ISO formats; it is a palindrome day of the year (33) and there are a palindrome of days left in the year (333).
This will never happen again. More details here:
When I first heard that cases were missing I thought “can’t be an Excel problem, the rows run out at 1,048,576 which is bigger than even total cases”.
I never thought they’d have a case per COLUMN. Unbelievable. And yes: Excel columns end at 16,384 aka “XFD”.
In the UK the number of cases rose rapidly.
But the public – and authorities – are only learning this now because these cases were only published now as a backlog.
The reason was apparently that the database is managed in Excel and the number of columns had reached the maximum.
6 ÷ 2(1+2) is going viral again. And the correct answer from a mathematician is “you need to write this better so it’s not ambiguous”.
PEMDAS/BODMAS is not some law of maths. ‘Order of operations’ are a convention to make writing clear. (PS The solution is always MORE BRACKETS.)
I cannot believe this is a real question in a legitimate UK Government survey. Even ignoring the typos etc: this would fail KS3 statistics because even 12 year olds know those are some leading responses.
@tweetsauce
Ok everyone, I’ve just found someone named Hannah (palindrome) who is turning 22 (palindrome) on 02/02/2020 (palindromapalooza). We can all go home now.
Mmm… perfect rectangle month. This year February is an exact rectangle because it starts on a Monday and it’s not a leap year.
But it’s not as rare as I see people claiming (every 200 years apparently‽), it’s about every 10 years. The previous was 2010 and the next is 2027.
I’m seeing a few of the “at 8:20pm and 20 seconds tonight it’ll be 20:20:20 2020” memes being passed around. Which is of course true for every night this year. My advice is to enjoy them all!
Or wait until 2:02am and 20.2 seconds on 2 Feb for: 02:02:20.20 02/02/2020
I’ve been married to
@Dr_Lucie
for the better part of a decade (plus many years prior) and I only just discovered today that when programming: for a loop-in-a-loop after “i” I use “j” but she uses “ii”. Geniius. Marriage really is a never-ending journey of discovery.
2022 is a multiple of 6 and its digits add to 6. It's not fancy but I like it. Previous two such years were 1500 and 2004; next two will be 2040 and 2112.
It is my theory that since 1966 the England national football team have only reached the final of the World Cup or Euros when the game ball contains a rectangle. You can't argue with a 100% correlation!
My latest LEGO Ideas project, a Clockwork Solar System, with 99.8% accurate relative orbital timings. A collaboration with Chris Orchard.
#legoideas
#LEGO
Every vote on LEGO Ideas helps it potentially being made into a real LEGO set.
A new biggest-yet prime number has been discovered! Another Mersenne Prime surprisingly close to the previous one.
2^ 77,232,917 -1 (vs 2^74,207,281 -1)
23,249,425 digits (vs 22,338,618 digits)
Sad that Stephen Hawking has died. But remember that he held a party for time travellers on the 28 June 2009 if any people of the future want to meet him. 12:00 UT 52° 12 21" N, 0° 7 4.7" E.
Happy
#PiDay
2020 everyone! In 1666 Cambridge Uni closed because of an infectious disease and so Isaac Newton went home to Woolsthorpe Manor and calculated π by hand. 354 years later: I try exactly the same thing. Who will win?
#ParkerVsNewton
We did it! We have found more false-π Casio calculations! Including the amazing 6^11/1000. People in the YouTube comments (including Smathlax and Felix Mandelbart) seem to have cracked the algorithm Casio calculators use to check for π. cc:
@Sheena2907
I am loving this. The last factorial is 170!
“Did you know? The number 170 is the highest possible number you can calculate a factorial for? Any higher than 170, and the mathematical answer is infinity.” -
There has been a lot of discussion about using Benford’s Law to detect shenanigans in the 2020 USA election. I doubled-checked some of the data and can confirm that while super interesting, there is no sign of foul play.
Sad to hear of the passing of mathematician John Conway. He’d like to remembered for any of his accomplishments except the Game of Life. He once said he checked the index of every book and if it listed the Game of Life he would refuse to read it. From the
@makeanddo4D
index:
Ok, that was to wind people up. But I think the reason many people (who write equations regularly) get 1 is because the convention of ‘adjacent means multiply’ outranks “×”. Just like a fraction outranks “÷”.
Change it to 6/2 × (1+2) and now it’s 9. (By unofficial convention.)
The BBC are reporting that the data was in Excel but was indeed in rows (not columns, phew).
HOWEVER, Public Health England used .xls format and not .xlsx which means they were limited to the pre-Excel-2007 limit of 65,536 (aka 2^16). Which is still breathtaking incompetence.
I would find a security lock on a £12 item ridiculous at the best of times, let alone when I’m in a bit of a rush. Thankfully there was a pretty easy workaround.
Amazing.
@HumblePi_0x03c0
is UK
#1
best seller. Thanks to the relentlessly supportive
@Dr_Lucie
, the many many people who helped with the book and huge thanks to
@MichelleObama
for not selling 341 more copies.
2019 = 0³ + 1⁸ + 2⁷ − 3⁹ + 4⁶ + 5⁴ + 6² + 7⁵ + 8¹ + 9⁰
(All the digits 0 to 9 raised to the power of all the digits 0 to 9.)
2019 facts in 2 mins 19 seconds
Amazing.
@RachelTrue
is locked out of iCloud because it’s refusing to set lastName to be the boolean ‘true’.
And it’s still not fixed! What kind of hokey code are
@apple
@applesupport
running?
Anyone else getting this error from Apple iCloud ? In past or now?
I’m 6 months deep freeze & looking for any help.
I rem dead coding languages like kobalt.. & this seems like an Apple coding issue — not hardware
Merry christmas to everyone and greetings from the southern hemisphere!
(Yes, everyone in my family got matching rashies (a kind of sun-projection shirt worn while swimming) for the traditional christmas swim.)
This is your annual reminder that yes: heart attacks go up 24% on the Monday after the clocks go forward (US data) but they are lower the rest of the week. The week-long average remains unchanged!
Daylight saving time accelerates heart attacks but doesn’t cause a net increase.
Today is the 21st day of the 21st year of the 21st century! To celebrate here is a 21 by 21 magic square which has a magic total of 21. (thanks to
@IJTANEJA
: )
I have my 27 tickets ready to go for a guaranteed win on tonight’s UK lottery! Maths! (PS I promise on 1.5% chance I make a net profit I will spend the money making maths videos.)
I told my Kickstarter backers I would display their name on the Arcade I use in the Humble Pi show. Then I gave them a free-entry text box to choose their display name.
And have several of them tried creative ways to break things? YOU BET THEY HAVE.
ME: Build, code and film a 500-LED xmas tree.
YOUTUBE: "Not bad, 375k views."
ME: Forty-five minutes of unedited footage of me running untested viewer code on the same tree, uploaded to my second channel.
YOUTUBE: "One million views for you!"
In Excel on a Mac hit the command-⌘ key with 'right arrow' and you'll jump to the last column (I think Windows is Ctrl+Right). Columns count up alphabetically and you can check that "XFD" is 'Excel base-26' for 16,384 which is 2^14. Excel stores column numbers as 14-bit binary.