ENIGMATH
@blogenigmath.bsky.social
Math blog by Paulo Ferro
https://blogenigmath.wordpress.com
https://blogenigmath.wordpress.com
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Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
Puzzle #22
The number 439 is created out of fifteen matchsticks.
Move two matchsticks to get a 3-digit number, all of them even numbers.
This puzzle was published on the @newscientist.com.
Solution 👇
blogenigmath.wordpress.com/2025/11/11/p...
#enigmath #math #puzzle
The number 439 is created out of fifteen matchsticks.
Move two matchsticks to get a 3-digit number, all of them even numbers.
This puzzle was published on the @newscientist.com.
Solution 👇
blogenigmath.wordpress.com/2025/11/11/p...
#enigmath #math #puzzle
November 11, 2025 at 8:13 AM
Puzzle #22
The number 439 is created out of fifteen matchsticks.
Move two matchsticks to get a 3-digit number, all of them even numbers.
This puzzle was published on the @newscientist.com.
Solution 👇
blogenigmath.wordpress.com/2025/11/11/p...
#enigmath #math #puzzle
The number 439 is created out of fifteen matchsticks.
Move two matchsticks to get a 3-digit number, all of them even numbers.
This puzzle was published on the @newscientist.com.
Solution 👇
blogenigmath.wordpress.com/2025/11/11/p...
#enigmath #math #puzzle
Abel transformation
Abel transformation, named after Niels Abel, transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation...
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/10/a...
#enigmath #math #dictionary
Abel transformation, named after Niels Abel, transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation...
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/10/a...
#enigmath #math #dictionary
November 10, 2025 at 8:13 AM
Abel transformation
Abel transformation, named after Niels Abel, transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation...
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/10/a...
#enigmath #math #dictionary
Abel transformation, named after Niels Abel, transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation...
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/10/a...
#enigmath #math #dictionary
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
November 9, 2025 at 8:17 PM
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
“A marveilous newtrality have these things mathematicall and also a strange participation between things supernaturall, imortall, intellectuall, simple and indivisible, and things naturall, mortall, sensible, compounded and divisible.”
John Dee
– English mathematician
#enigmath #math #quote
John Dee
– English mathematician
#enigmath #math #quote
November 9, 2025 at 6:54 AM
Great dodecahedron
Polyhedron with twelve pentagonal faces with five pentagons meeting at each vertex, intersecting each other making a pentagrammic path.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/07/g...
#enigmath #math #polyhedron
Polyhedron with twelve pentagonal faces with five pentagons meeting at each vertex, intersecting each other making a pentagrammic path.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/07/g...
#enigmath #math #polyhedron
November 7, 2025 at 6:49 AM
Great dodecahedron
Polyhedron with twelve pentagonal faces with five pentagons meeting at each vertex, intersecting each other making a pentagrammic path.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/07/g...
#enigmath #math #polyhedron
Polyhedron with twelve pentagonal faces with five pentagons meeting at each vertex, intersecting each other making a pentagrammic path.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/07/g...
#enigmath #math #polyhedron
Pentagonal tiling 9
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/06/p...
#enigmath #math #tiling
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/06/p...
#enigmath #math #tiling
November 6, 2025 at 7:20 AM
Pentagonal tiling 9
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/06/p...
#enigmath #math #tiling
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/06/p...
#enigmath #math #tiling
Lars Ahlfors
Finish mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/11/05/l...
#enigmath #math #mathematician
Finish mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/11/05/l...
#enigmath #math #mathematician
November 5, 2025 at 7:59 AM
Lars Ahlfors
Finish mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/11/05/l...
#enigmath #math #mathematician
Finish mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/11/05/l...
#enigmath #math #mathematician
Folium of Descartes
The folium of Descartes is a curve that was first proposed and studied by René Descartes in 1638.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/04/f...
#enigmath #math #curve
The folium of Descartes is a curve that was first proposed and studied by René Descartes in 1638.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/04/f...
#enigmath #math #curve
November 4, 2025 at 6:59 AM
Folium of Descartes
The folium of Descartes is a curve that was first proposed and studied by René Descartes in 1638.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/04/f...
#enigmath #math #curve
The folium of Descartes is a curve that was first proposed and studied by René Descartes in 1638.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/04/f...
#enigmath #math #curve
Seventeen
Seventeen is a prime number.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/03/s...
#enigmath #math #number
Seventeen is a prime number.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/03/s...
#enigmath #math #number
November 3, 2025 at 8:55 AM
Seventeen
Seventeen is a prime number.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/03/s...
#enigmath #math #number
Seventeen is a prime number.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/03/s...
#enigmath #math #number
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
November 2, 2025 at 8:36 PM
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
Draughts
Draughts is a strategy board game for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/02/d...
#enigmath #math #game
Draughts is a strategy board game for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/02/d...
#enigmath #math #game
November 2, 2025 at 6:46 AM
Draughts
Draughts is a strategy board game for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/02/d...
#enigmath #math #game
Draughts is a strategy board game for two players which involve diagonal moves of uniform game pieces and mandatory captures by jumping over opponent pieces.
Learn more about it 👇
blogenigmath.wordpress.com/2025/11/02/d...
#enigmath #math #game
Puzzle #21
The two equal sides of an isosceles triangle trisects the top left vertex of the square with side length 6
What is the area of the triangle?
Solution 👇
blogenigmath.wordpress.com/2025/11/01/p...
#enigmath #math #puzzle
The two equal sides of an isosceles triangle trisects the top left vertex of the square with side length 6
What is the area of the triangle?
Solution 👇
blogenigmath.wordpress.com/2025/11/01/p...
#enigmath #math #puzzle
November 1, 2025 at 6:46 AM
Puzzle #21
The two equal sides of an isosceles triangle trisects the top left vertex of the square with side length 6
What is the area of the triangle?
Solution 👇
blogenigmath.wordpress.com/2025/11/01/p...
#enigmath #math #puzzle
The two equal sides of an isosceles triangle trisects the top left vertex of the square with side length 6
What is the area of the triangle?
Solution 👇
blogenigmath.wordpress.com/2025/11/01/p...
#enigmath #math #puzzle
Abel transform
Abel transform, named after Niels Abel, is an integral transform often used in the analysis of spherically symmetric or axially symmetric functions.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/31/a...
#enigmath #math #dictionary
Abel transform, named after Niels Abel, is an integral transform often used in the analysis of spherically symmetric or axially symmetric functions.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/31/a...
#enigmath #math #dictionary
October 31, 2025 at 6:08 AM
Abel transform
Abel transform, named after Niels Abel, is an integral transform often used in the analysis of spherically symmetric or axially symmetric functions.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/31/a...
#enigmath #math #dictionary
Abel transform, named after Niels Abel, is an integral transform often used in the analysis of spherically symmetric or axially symmetric functions.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/31/a...
#enigmath #math #dictionary
Small stellated dodecahedron
Polyhedron with twelve pentagrammic faces with five pentagrams meeting at each vertex.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/28/s...
#enigmath #math #polyhedron
Polyhedron with twelve pentagrammic faces with five pentagrams meeting at each vertex.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/28/s...
#enigmath #math #polyhedron
October 28, 2025 at 6:55 AM
Small stellated dodecahedron
Polyhedron with twelve pentagrammic faces with five pentagrams meeting at each vertex.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/28/s...
#enigmath #math #polyhedron
Polyhedron with twelve pentagrammic faces with five pentagrams meeting at each vertex.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/28/s...
#enigmath #math #polyhedron
Manindra Agrawal
Indian mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/10/26/m...
#enigmath #math #mathematician
Indian mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/10/26/m...
#enigmath #math #mathematician
October 26, 2025 at 6:14 PM
Manindra Agrawal
Indian mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/10/26/m...
#enigmath #math #mathematician
Indian mathematician.
Learn more about him 👇
blogenigmath.wordpress.com/2025/10/26/m...
#enigmath #math #mathematician
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
October 26, 2025 at 5:57 AM
Mastering Geometry Puzzles
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
My new book with 120 geometry puzzles, all of them with step-by-step solutions.
You can pre-order it on Amazon.
Learn more about the book below 👇
blogenigmath.wordpress.com/2025/10/19/m...
#math #geometry #puzzle #book #MasteringGeometryPuzzles #booksky
Butterfly curve
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/25/b...
#enigmath #math #curve
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/25/b...
#enigmath #math #curve
October 25, 2025 at 7:16 PM
Butterfly curve
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/25/b...
#enigmath #math #curve
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/25/b...
#enigmath #math #curve
Konane
Konane is a strategy board game invented by the ancient Polynesians of Hawaii.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/23/k...
#enigmath #math #game
Konane is a strategy board game invented by the ancient Polynesians of Hawaii.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/23/k...
#enigmath #math #game
October 23, 2025 at 5:03 PM
Konane
Konane is a strategy board game invented by the ancient Polynesians of Hawaii.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/23/k...
#enigmath #math #game
Konane is a strategy board game invented by the ancient Polynesians of Hawaii.
Learn more about it 👇
blogenigmath.wordpress.com/2025/10/23/k...
#enigmath #math #game
Puzzle #20
The sides of a rectangle with perimeter 12 are parallel to the sides of the square with side length 10
What is the area of the rectangle?
Solution 👇
blogenigmath.wordpress.com/2025/10/22/p...
#enigmath #math #puzzle
The sides of a rectangle with perimeter 12 are parallel to the sides of the square with side length 10
What is the area of the rectangle?
Solution 👇
blogenigmath.wordpress.com/2025/10/22/p...
#enigmath #math #puzzle
October 22, 2025 at 6:35 PM
Puzzle #20
The sides of a rectangle with perimeter 12 are parallel to the sides of the square with side length 10
What is the area of the rectangle?
Solution 👇
blogenigmath.wordpress.com/2025/10/22/p...
#enigmath #math #puzzle
The sides of a rectangle with perimeter 12 are parallel to the sides of the square with side length 10
What is the area of the rectangle?
Solution 👇
blogenigmath.wordpress.com/2025/10/22/p...
#enigmath #math #puzzle
Abel’s theorem
Abel’s theorem for power series relates a limit of a power series to the sum of its coefficients. It is named after Norwegian mathematician Niels Abel.
#enigmath #math #dictionary
Abel’s theorem for power series relates a limit of a power series to the sum of its coefficients. It is named after Norwegian mathematician Niels Abel.
#enigmath #math #dictionary
Abel’s theorem
Abel’s theorem for power series relates a limit of a power series to the sum of its coefficients. It is named after Norwegian mathematician Niels Abel. Suppose $latex \displaystyle \sum_{n=0}…
blogenigmath.wordpress.com
October 21, 2025 at 5:34 PM
Abel’s theorem
Abel’s theorem for power series relates a limit of a power series to the sum of its coefficients. It is named after Norwegian mathematician Niels Abel.
#enigmath #math #dictionary
Abel’s theorem for power series relates a limit of a power series to the sum of its coefficients. It is named after Norwegian mathematician Niels Abel.
#enigmath #math #dictionary