Meditations on Mathematics

A compendium of puzzles, problems, math inquiries, and math commentary.

Skip to content
  • Home
  • About
  • Articles (PDF)
  • Timelines
Meditations on Mathematics

Winter Sum

Here is another sum problem, this time from the 2021 Math Calendar.

________________

As before, recall that all the answers are integer days of the month.  And the solution employs a technique familiar to these pages.

See the Winter Sum

Post Views: 199
This entry was posted in Math Inquiries and tagged calculus, Math Calendar, sequences and series on January 15, 2022 by Jim Stevenson.

Post navigation

← Grandfather Clock Puzzle Another Christmas Tree Puzzle →

Search this blog

Contact

Email: mathmeditations@josmfs.net

Recent Comments

  • Jim Stevenson on Triangle Projection Problem
  • Oscar Rojas on Triangle Projection Problem
  • Jim Stevenson on Triangle Projection Problem
  • Jim Stevenson on Quintic Nightmare
  • Sanjay Godse on Quintic Nightmare
  • Leslie Green on Fibonacci Fandango
  • Sanjay Godse on Two Squares Problem
  • Sanjay Godse on More Squares in Semicircle
  • Oscar Rojas on Two Squares Problem
  • Jim Stevenson on Two Squares Problem

Most Viewed Posts

  • Ancestors Problem (9,652)
  • Geometric Puzzle Munificence (5,158)
  • The Weight Problem of Bachet de Méziriac (4,969)
  • Amazing Triangle Problem (3,455)
  • Bugles, Trumpets, and Beltrami (3,332)
  • Hard Geometric Problem (3,034)
  • Geometric Puzzle Medley (2,904)
  • Fibonacci, Chickens, and Proportions (2,815)
  • Alberti’s Perspective Construction (2,637)
  • Feedback Request (2,611)
  • Perspective Map (2,541)
  • Geometric Puzzle Mayhem (2,496)
  • Newton and the Declaration of Independence (2,482)
  • Triangle Quadrangle Puzzle (2,334)
  • Red Star (Красная Звезда) (2,270)

Categories

  • Administration (6)
  • Causality, Chance, and Connections (6)
  • Curiosities and Questions (18)
  • Math Commentary (9)
  • Math Inquiries (50)
  • Other Voices (13)
  • Puzzles and Problems (219)

Recent Updates

    Close Race Puzzle 1/2/2023
    Geometric Puzzle Magnificence 11/13/2022
    Train Wreck Puzzle 10/20/2022
    Hyperboloid as Ruled Surface 9/19/2022
    Two Squares Problem 9/1/2022
    Gerrymandering at SCOTUS 8/27/2022
    Mercator Projection Balloon 4/2/2022
    Turkey Red (Ukraine) 2/24/2022
    Wandering Epicycle 1/3/2022
    Equitable Slice Problem 9/22/2021

Archives

Interesting Websites

    Backreaction (Sabine Hossenfelder)
    Futility Closet (Greg Ross)
    GoldPlatedGoof (Nakul Dawra)
    Kevin Drum
    Mathematical Enchantments (James Propp)
    Mathologer (Burkard Polster)
    Mind Your Decisions (Presh Talwalkar)
    minutephysics (Henry Reich)
    Not Even Wrong (Peter Woit)
    Numberphile
    @Cshearer41 (Catriona Agg Twitter)
    standupmaths (Matt Parker)
    Thinking Mathematics! (James Tanton)
    @jamestanton (James Tanton Twitter)
    Tanya Khovanova's Math Blog
    3Blue1Brown (Grant Sanderson)
    3 Quarks Daily

Analytic Tools

 

Igor Pro by Wavemetrics

Tags

3blue1brown 500 Math Challenges Abraham Lincoln Abū’l-Wafā’ affine transformation Afghanistan AIME Alberti Alcuin Alexander the Great Alex Bellos Alfred Posamentier algebra analytic geometry angular momentum Antonio Rinaldi arithmetic Ash Jogalekar Bart Ehrman base 2 base 3 being a mathematician Beltrami Ben Orlin billiard table solution binary numbers Bourbaki Brain Bogglers Brouwer calculus calendar Carl Becker cartography Catriona Agg centrifugal force centripetal force Chalkdust Magazine Christopher Columbus Clifford Pickover Clifford Truesdell clock puzzles codes and ciphers Coffin Problem Colin Hughes complex numbers compressed circle Coriolis force coronavirus counterfeit coin Coxeter cross product Crux Mathematicorum curvature Daniel Griller Dan Pedoe Datagenetics Blog David Wells Declaration of Independence determinants differential equations differential geometry digital root Droste effect Ed Barbeau Einstein Electoral College ellipse Emmy Noether engineering Enlightenment equal areas law Erich von Däniken Eugene Wigner Eureka magazine exponential function exponential growth Fibonacci fields fixed-points fractions Futility Closet Gandhara Gaspard Bachet Gauss GCSE exam geometric series George Gamow George Polya George Simmons gerrymandering GoldPlatedGoof Greek-Indian connection GSCE problems Heinrich Dorrie heliocentrism Henk Reuling Henry Dudeney historical irony hyperbolic function hyperbolic space Ian Stewart infinite regress infinity innumeracy Isaac Azimov Isaac Newton J. A. H. Hunter James Burke James Propp James Tanton Johannes Kepler John Baez Jordan Ellenberg Jorge Luis Borges Keith Devlin Kevin Drum Kurt Gödel Kvantik magazine L. H. Longley-Cook Ladies Diary Lambert law of inertia Leonhard Euler Lewis Carroll limits linear transformations logarithm logic logistic model Martin Gardner Mary Wright Math Calendar math cryptogram math definitions mathematical induction mathematician in society math history math homework Mathigon Mathologer MathsJam MathsMonday Matthew Scroggs Matt Parker Max Tegmark Mercator metric spaces Minkowski Minute Physics Mixture Problems modular arithmetic MoMath motor proteins Mott-Smith optimization Otto Toeplitz Pascal's triangle Paul Halmos Paul Nahin permutations perspective Peter Hoffmann Philip Gosse physics Pi in the Sky Platonism Polish Math Olympiads politics Poo-Sung Park‏ power series Presh Talwalkar probability proportions Putnam exam Pythagorean Theorem Quantum magazine Ramon Lull ratios Raymond Smullyan reality religion Richard Feynman Rodney Stark Sam Loyd Scientific Revolution sequences and series Sherlock Holmes simple harmonic motion SMC Challenge soapbox special relativity spherical geometry Steinmetz symmetries Tanya Khovanova ternary numbers The Analyst Thomas Whiting Thony Christie Tim Dedopulos timeline Tony Lester topple blocks Torelli Trumpet train puzzles travel puzzles trigonometry UKMT Challenge universal library vacuous truth Varsity Math Week vectors Viviani Theorem voting W.W. Rouse Ball Washington Irving winding number work problem za'irajah (zairja) Zeno's Paradox
Proudly powered by WordPress