mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

 2021-12-04 

Christmas card 2021

Showing all comments about the post Christmas card 2021. To return to the blog post, click here.

Comments

Comments in green were written by me. Comments in blue were not written by me.
The only one I'm stuck on is #6. I thought I was doing it right but I'm getting a non-integer answer. I'm assuming the heptagon in question is aligned so one of its sides sits on the diameter of the semicircle, and the opposite vertex sits on the curved edge of the semicircle. Is this wrong?
Seth C
                 Reply
The version of the card on this page doesn't check if your answers are correct, so it will colour in any number you enter as long as it has the right number of digits.
Matthew
      ×1           Reply
Wonky solution for #9? On a blank start page, answering "16" gives you red and white puzzle completions, yet we _know_ that 16 is an incorrect answer. Strange?
Attika
                 Reply
@Matthew: Thanks, I figured they did but it was good to get confirmation.
Dan
                 Reply
@Dan: one digit numbers count
Matthew
   ×1              Reply
I think questions 11 and 12 could use some some clarification as to whether or not single-digit numbers should count.
Dan
                 Reply
@HJ: the smallest one does have 6, and Q4 is correct too. I bought the cards and had good fun solving it myself. I’m glad to find this here though to check my answers as when I did the shading it looked like the picture wasn’t quite right. Thanks for the cards Matthew, I look forward to next year’s - no pressure!
Alec
×1   ×2              Reply
Questions 3 and 4 seem incorrect. The answer I get for question 3 as written has 8 digits, but the accepted answer has only 6. Similarly for question 4.
HJ
      ×1           Reply
 Add a Comment 


I will only use your email address to reply to your comment (if a reply is needed).

Allowed HTML tags: <br> <a> <small> <b> <i> <s> <sup> <sub> <u> <spoiler> <ul> <ol> <li> <logo>
To prove you are not a spam bot, please type "oitar" backwards in the box below (case sensitive):

Archive

Show me a random blog post
 2024 

Feb 2024

Zines, pt. 2

Jan 2024

Christmas (2023) is over
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

flexagons determinants rhombicuboctahedron martin gardner 24 hour maths runge's phenomenon folding tube maps hats palindromes dataset gather town nine men's morris asteroids hexapawn fonts logic golden spiral stirling numbers standard deviation books advent calendar people maths boundary element methods light javascript binary mathsjam finite element method golden ratio anscombe's quartet tennis preconditioning errors logo christmas card chess error bars recursion inline code video games pi electromagnetic field raspberry pi plastic ratio coins sound captain scarlet crochet pythagoras christmas games football national lottery signorini conditions numbers pizza cutting a gamut of games news cambridge curvature royal baby realhats datasaurus dozen weak imposition squares dates talking maths in public convergence misleading statistics dragon curves polynomials mathsteroids logs map projections royal institution draughts mean frobel big internet math-off london underground european cup graph theory craft geometry gaussian elimination sport programming rugby hyperbolic surfaces speed fence posts folding paper numerical analysis radio 4 pac-man data visualisation puzzles finite group geogebra the aperiodical harriss spiral dinosaurs crossnumber pi approximation day bubble bobble ucl data zines matrix of minors matrix multiplication go mathslogicbot noughts and crosses estimation ternary countdown exponential growth latex graphs machine learning approximation world cup php menace bodmas interpolation chalkdust magazine sorting propositional calculus statistics gerry anderson wave scattering arithmetic quadrilaterals final fantasy guest posts probability inverse matrices edinburgh matt parker youtube correlation reuleaux polygons weather station wool braiding computational complexity python london platonic solids matrix of cofactors cross stitch sobolev spaces newcastle trigonometry bempp reddit hannah fry accuracy simultaneous equations pascal's triangle phd databet live stream manchester manchester science festival triangles oeis tmip game of life chebyshev matrices game show probability turtles fractals stickers

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2024