Math and Logic Puzzles
| If you REALLY like exercising your brain, figuring things 'round and 'round till you explode, then this is the page for you ! | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Whosoever shall solve these puzzles shall Rule The Universe!... or at least they should ... | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mathematicians born in India
Mathematicians' birthplaces are given relative to modern-day boundaries.
Click on the name below to go to the biography.
Click HERE to see a clickable map of India and Pakistan.
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| Main index | Biographies Index | ||
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| Mathematicians of the day | Timelines | ||
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JOC/EFR/BS August 2011The URL of this page is:
- Folded sheet of paper
- Triangular area
- Two logicians
- Equatorial belt
- Confused bank teller
- Ant on a box
- Five men, a monkey, and some coconuts
- 271
- Reciprocals and cubes
- Farmer's enclosure
- Dice game
- Making $1
- Coin triplets
- Two ladders in an alley
- Infinite product
- Zero-sum game
- Three children
- One extra coin
- Five card trick
- Five card trick, part 2
- Birthday line
- Isosceles angle
- A generalization
- Length of hypotenuse
- Die: median throws
- Die: mean throws
- Two packs of cards
- 1000th digit
- Making 24
- xx
- Two pool balls
- Area of a rhombus
- Differentiation conundrum
- Harmonic sum
- Harmonic sum 2
- Cuboids
- Composite numbers
- Five marbles
- Twelve marbles
- Prime or composite?
- No consecutive heads
- Crazy dice
- Multiplicative sequence
- Sum of two powers
- Sum of two powers 2
- Area of regular 2n-gon
- Consecutive subsequence
- 1000 divisors
- Exponential equation
- An odd polynomial
- Highest score
- Greatest common divisor
- Floor function sum
- The absentminded professor
- Diophantine squares
- Area of a trapezoid
- Partition identity
- Binomial coefficient divisibility
- Fifth power plus five
- Triangle inequality
- Sum of reciprocals
- Two cubes?
- One cube?
- Four squares on a quadrilateral
- Cyclic hexagon
- Balls in an urn
- Consecutive integer products
- Quadratic divisibility
- Random number generator
- Difference of powers
- Combinatorial sum
- One degree
- Consecutive cubes and squares
- Depleted harmonic series
- Unobtuse triangle
- Sum of 9999 consecutive squares
- Car journey
- Square inscribed in a triangle
- Ladder against a box
- Minimal straight cut
- Perfect square
- Sum of fourth powers
- Sixes and sevens
- Digit transfer
- Consecutive heads
- Divisibility
- Missing digits
- Fibonacci nines
- Folded card
- 2004
- Nested radicals
- Square digits
- Powers of 2: rearranged digits
- Nonagon diagonals
- Heptagon diagonals
- Consecutive integer sums
- Pascal's triangle
- Square endings
- Integer polynomial
- Five real numbers
- Two squares
- Three powers
- Two similar triangles
- Perpendicular medians
- Right triangles
- Almost exponential
- Root sums
- Sum of two squares
- Quadratic roots
- An arbitrary sum
- Difference of nth powers
- Flying cards
- A mysterious sequence
- Eyeball to eyeball
- Nested circular functions
- Pairwise products
- Trigonometric progression
- Six tangents
- Center of mass
- Angle bisector
- Ant in a field
- Sums of squares and cubes
- Sum of sines
- Factorial divisors
- A generalization
- Random point in an equilateral triangle
- Powers of 2: deleted digit
- Three sines
- Factorial plus one
- Integer sequence
- Powers of 2 and 5
- Right angle and median
- The ladder
- Divisibility by 446617991732222310
- Intersecting squares
- Prime number generator
- Modular equation
- Abelian group
- Reciprocal polynomial?
- Horse race
- Triangular angle
- Prime sequence?
- Sum of reciprocal roots
- Clock hands
- Point in a triangle
- Factorial plus one equals prime power?
- Integer sum of roots
- Three towns
- Six towns
- Alternating series
- Sum of two nth powers
- Semicircle in a triangle
- Difference of two nth powers
- Heads and tails
- Odds and evens
- Prime or composite 2
- Power series
- Ones and nines
- Isosceles apex angle
- Painted cubes
- Totient valence
- Semicircle in a square
- Triangle in a trapezoid
- Sum of two powers is a square?
- Three simultaneous equations
- Trigonometric product
- Fermat squares
- Eight odd squares
- Absolute maximum
Nick Hobson
nickh@qbyte.org
Last updated: August 8, 2007
Nick's Mathematical Miscellany
Puzzles
- Nick's Mathematical Puzzles - A collection of puzzles, with hints, full solutions, and links to related mathematical topics.
- Wu's Riddles - Riddles, puzzles, and technical interview questions, with a forum.
- University 'problem of the week', with extensive archives:
- Macalester College Problem of the Week - from Professor Stan Wagon.
- Purdue University Problem of the Week - from the mathematics department.
- Bradley University Problem of the Week - from Professor Alberto L. Delgado.
- Math Contest - from Columbus State University.
- Mathpuzzle.com - A cornucopia of math puzzles and mathematical recreations.
- Art of Problem Solving - A community for avid students of mathematics, with forums, articles, and other mathematical activities.
- Wisconsin Mathematics, Engineering and Science Talent Search - Archive of problem sets and solutions.
- Project Euler - A collection of mathematical/computer programming problems, ranging from easy to challenging, with a forum thread for each problem.
Other mathematical resources and links
- Interactive Mathematics Miscellany and Puzzles - A treasure trove of proofs, games and puzzles, and other eye openers.
- Mathematical Association of America: MAA Online - Comprehensive resources, including book reviews, regular columns, and a mathematical history magazine.
- Mathematician Biography Index - Brief biographies for almost every important mathematician in history.
- The Online Encyclopedia of Integer Sequences - Identify an integer sequence, find the general formula, and obtain missing terms.
- Eric Weisstein's World of Mathematics - Comprehensive and interactive mathematical encyclopedia.
- Mathematical Quotations Server - A searchable collection of quotations culled from many sources.
- Mudd Math Fun Facts - An archive of mathematical snippets, arranged by subject, difficulty, and keyword.
- The Mathematical Atlas - A gateway to modern mathematics.
- QuickMath - Automated solutions in algebra, equations, inequalities, calculus, matrices, graphs, and numbers.
- Dario Alpern's Calculators - A variety of number theoretic calculators, equation solvers, and factorization engines.
- Frequently Asked Questions in Mathematics - Covers a wide range of topics, ranging from trivia and the trivial to advanced subjects such as Wiles' recent proof of Fermat's Last Theorem.
- Mathematical discussions - Essays attempting to show how various mathematical ideas arise naturally. Written in the spirit of George Polya.
- MathPages - Reflections on miscellaneous mathematical topics.
- The Most Common Errors in Undergraduate Mathematics - A comprehensive survey, discussing likely causes of errors, and their remedies.
- Math Help - Articles, proofs, puzzles, jokes, and math tutoring services.
- Oxford University Undergraduate Students Lecture Notes and Problem Sheets - A wealth of useful material.
- Reciprocal links - Educational and Puzzle Sites
Nick Hobson
nickh@qbyte.org
nickh@qbyte.org
Last updated: April 3, 2008
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