Trending Mathematical Concepts in Japan — the 7 days to 26 October 2026
The 99 most-viewed mathematical concepts on Wikipedia, the 7 days to 26 October 2026 (Japanese-language edition). Ranked by real-world attention. Top: Tetris. Data as of 26 October 2026.
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- the 7 days to 26 October 2026 · Data as of 26 October 2026
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- 99 mathematical concepts — drawn from 1,343,244 articles Wikipedia recorded views for in this window
This counts a Wikipedia language edition, not a country's residents — Measured from the Japanese-language Wikipedia edition — readers worldwide, not residents of Japan. Nothing here is capped or sampled: it is every view Wikipedia published for these articles in the window. Rows carrying a 📰 badge add news coverage from GDELT; entity names and types come from Wikidata. Looking for what one country read? That is what the world reads — a different, capped measurement.
Where this data comes from ›99
Ranked
74,500
Total Views (the 7 days to 26 October 2026)
1
Tetris
1984 tile-matching puzzle video game series
5,241
views
views
2
pi
constant ratio of the circumference of a circle to its diameter
4,564
views
views
3
Navier–Stokes equations
system of nonlinear partial differential equations describing the motion of viscous fluids
2,562
views
views
4
Monty Hall problem
mathematical problem
2,206
views
views
5
Euler's number
mathematical constant; limit of (1 + 1/n)^n as n approaches infinity; transcendental number approximately equal 2.718281828
2,030
views
views
6
Riemann hypothesis
conjecture in mathematics linked to the repartition of prime numbers
2,003
views
views
7
Roman numerals
numbers in the Roman numeral system
1,987
views
views
8
sudoku
logic-based number-placement puzzle
1,929
views
views
9
Fibonacci number
integer in the infinite Fibonacci sequence
1,733
views
views
10
Brotli
open source compression algorithm
1,383
views
views
11
Kardashev scale
Proposed scale by which the scope of a civilisation might be measured
1,377
views
views
12
golden ratio
ratio between two quantities whose sum is at the same ratio to the larger one
1,371
views
views
13
Occam's razor
philosophical principle evaluating reasoning on the basis of its simplicity
1,340
views
views
14
Poincaré conjecture
theorem in geometric topology that every simply connected, closed 3-manifold is homeomorphic to the 3-sphere
1,309
views
views
15
Vitruvian Man
drawing by Leonardo da Vinci
1,240
views
views
16
Fourier transform
mathematical transform that expresses a function of time as a function of frequency
1,206
views
views
17
Roche limit
astronomical concept
1,197
views
views
18
P versus NP problem
unsolved problem in computer science about time complexity
1,146
views
views
19
Solitary 7
arithmetical restoration
1,139
views
views
20
product integral
integral using products instead of sums
990
views
views
21
Collatz conjecture
conjecture in mathematics that concerns sequences
985
views
views
22
Financial numerals
Chinese character numerals that are equivalents of ordinary numerals but are more complicated so as to prevent forgery of cheques etc.; e.g. 1 一 → 壹, 2 二 → 貳
976
views
views
23
Bitcoin
digital cash system and associated currency
923
views
views
24
Beale ciphers
a set of three ciphertexts
837
views
views
25
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Stable Diffusion
image-generating machine learning model
811
views
views
26
abc conjecture
number theory conjecture
778
views
views
27
mass–energy equivalence
physical law relating mass to energy
764
views
views
28
Tower of Hanoi
mathematical game or puzzle
761
views
views
29
Monte Carlo method
broad class of computational algorithms using random sampling to obtain numerical results
753
views
views
30
Reynolds number
dimensionless quantity that is used to help predict similar flow patterns in different fluid flow situations
742
views
views
31
MP3 Audio
open standard lossy compression format for digital audio
736
views
views
32
Kaprekar number
non-negative integer, the representation of whose square in that base can be split into two parts that add up to the original number again
730
views
views
33
Möbius strip
two-dimensional surface with only one side and only one edge
726
views
views
34
function
association of a single output to each input
723
views
views
35
chirality
geometric property of some molecules and ions
711
views
views
36
6÷2(1+2)
696
views
views
37
moving sofa problem
mathematical problem about moving the largest possible shape around a 90° corner
646
views
views
38
birthday problem
mathematical problem
642
views
views
39
Turing test
test of a machine's ability to exhibit intelligent behaviour equivalent to, or indistinguishable from, that of a human
633
views
views
40
Taylor series
expression of a function as an infinite sum
596
views
views
41
Laplace transform
the integral transform ∫₀^∞ d𝑠 𝑓(𝑡)exp(−𝑠𝑡)
565
views
views
42
Turing completeness
ability of a computing system to simulate Turing machines
556
views
views
43
Mandelbrot set
fractal-like set that plays a significant role in chaos research
542
views
views
44
Base64
group of binary-to-text encoding schemes using 64 symbols (plus padding)
542
views
views
45
tensor
multilinear map on some combination of scalars, vectors, covectors, and tensors
530
views
views
46
Goldbach's conjecture
Conjecture that every even integer greater than 2 is the sum of two primes
505
views
views
47
Dijkstra's algorithm
graph search algorithm
491
views
views
48
Buffon's needle
question in geometric probability
467
views
views
49
hexadecimal
numeral system with 16 as its base
455
views
views
50
Riemann zeta function
analytic function
449
views
views
51
Platonic solid
convex regular polyhedra with the same number of faces at each vertex
446
views
views
52
Einstein field equations
field equations in general relativity
414
views
views
53
Arrhenius equation
formula for the temperature dependence of reaction rates
414
views
views
54
Heron's formula
formula for calculating the area of a triangle
412
views
views
55
Jacobian matrix
the matrix of all first-order partial derivatives of a vector-valued function
408
views
views
56
Hodge conjecture
conjecture in algebraic geometry that every Hodge class on a nonsingular complex projective manifold is a linear combination with rational coefficients of the cohomology classes of complex subvarieties
406
views
views
57
Drake equation
probabilistic argument to estimate the number of alien civilizations in our galaxy
405
views
views
58
Nonogram
picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden picture
404
views
views
59
silver ratio
real number, second member of the sequence generalized from the golden ratio
388
views
views
60
Hilbert space
inner product space that is metrically complete; a Banach space whose norm induces an inner product (follows the parallelogram identity)
386
views
views
61
infinity
mathematical concept of something without any limit
383
views
views
62
binary numeral system
system that represents numeric values using two symbols; 0 or 1
377
views
views
63
Chinese numerals
words and characters used to denote numbers in Chinese
375
views
views
64
Fourier series
decomposition of periodic functions into sums of simpler sinusoidal forms
369
views
views
65
travelling salesperson problem
NP-hard problem in combinatorial optimization
369
views
views
66
convolution
binary mathematical operation on functions, defined as the integral of the product of two functions after one is reflected about the y-axis and shifted, evaluated for all values of shift, producing the convolution function
360
views
views
67
von Neumann architecture
computer architecture using a common memory bus and address space for instructions and data
358
views
views
68
perceptron
algorithm for supervised learning of binary classifiers
355
views
views
69
Newton's method
algorithm for finding a zero of a function
341
views
views
70
sieve of Eratosthenes
ancient algorithm for generating prime numbers
340
views
views
71
Basel problem
mathematical problem
337
views
views
72
topological space
set of points and set of neighborhoods that satisfy axioms relating those points to those neighborhoods
337
views
views
73
Zeller's congruence
algorithm to calculate the day of the week in the Gregorian and Julian calendars
335
views
views
74
Birch and Swinnerton-Dyer conjecture
conjecture
333
views
views
75
harmony
process by which individual sounds are joined together or composed into whole units or compositions
328
views
views
76
Empty Fort Strategy
the thirty-second of the Thirty-Six Stratagems
325
views
views
77
axiom
statement of a theory that is taken to be true
317
views
views
78
quadratic formula
formula that provides the solution(s) to a quadratic equation
316
views
views
79
inclusion–exclusion principle
counting technique in combinatorics
313
views
views
80
Lorentz transformation
space-time coordinate transformation that conserves the form of Maxwell’s equations
312
views
views
81
Advanced Encryption Standard
block cipher standard
306
views
views
82
backpropagation
optimization algorithm for artificial neural networks
306
views
views
83
Jacobian conjecture
conjecture asserting that, over a characteristic-zero field K, given a polynomial map f: Kⁿ → Kⁿ, if its Jacobian determinant J: Kⁿ → K is a nonzero constant map, then f admits a polynomial inverse g: Kⁿ → Kⁿ
305
views
views
84
gematria
numeral system
304
views
views
85
square root
inverse operation of square for finding the original base number; that base number itself
298
views
views
86
information entropy
expected value of the amount of information delivered by a message
295
views
views
87
Bernoulli number
rational number sequence 𝐵ₖ such that (𝑚+1)∑𝑛ᵐ=(ᵐ⁺¹₀)𝐵₀𝑛ᵐ⁺¹−(ᵐ⁺¹₁)𝐵₁𝑛ᵐ+(ᵐ⁺¹₂)𝐵₂𝑛ᵐ¯¹−(ᵐ⁺¹₃)𝐵₃𝑛ᵐ¯²+⋯
289
views
views
88
Benford's law
observation about the frequency distribution of leading digits in many real-life sets of numerical data
282
views
views
89
number
mathematical object used to count, label, and measure
280
views
views
90
N-BOX
276
views
views
91
big O notation
form of Landau notation representing asymptotically equivalent or slower growth
273
views
views
92
square root of 2
unique positive real number which when multiplied by itself gives 2
270
views
views
93
quicksort
divide and conquer sorting algorithm
267
views
views
94
Poisson's ratio
parameter of elastic materials: ratio of transverse strain to axial strain
264
views
views
95
Euclidean algorithm
algorithm for computing greatest common divisors
263
views
views
96
Boltzmann distribution
probability distribution of energy states of a system
263
views
views
97
Kalman filter
algorithm that estimates unknowns from a series of measurements over time
258
views
views
98
MD5
message-digest hashing algorithm
258
views
views
99
Seven Bridges of Königsberg
mathematical problem
256
views
views