General Math Forum

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Join in expert discussion on general math topics that are not applicable to the specific categories. This includes topics are usually high school math level. Homework help is available.

Math Proof Training and Practice

A gap in resources that should help students visualise mathematics
146 threads
A gap in resources that should help students visualise mathematics

Math Guides, Tutorials and Articles

Tusi couple
47 threads
Tusi couple

Math Problem of the Week

Just a kinematics problem from a Russian physics olympiad
1.3K threads
Just a kinematics problem from a Russian physics olympiad

MATLAB, Maple, Mathematica, LaTeX

Cone‑like layered structure in 2D FFT
6.5K threads
Cone‑like layered structure in 2D FFT
  • Sticky
Problem-Solving Strategy for Dynamics Problems
  • Ackbach
  • · Replies 2 ·
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2
  • Sticky
High School List of Online Calculators for Math, Physics, Earth and Other Curiosities
  • fresh_42
  • · Replies 0 ·
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0
  • Sticky
Graduate What Topics Do These Math FAQs Cover?
  • Greg Bernhardt
  • · Replies 6 ·
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6
Undergrad Is infinity a necessary concept?
  • FermisPairOfDucks
  • · Replies 62 ·
3
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62
Undergrad Descartes’ Geometry of Square Roots
  • bob012345
  • · Replies 38 ·
2
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38
Undergrad Meaning of division by non-whole real numbers
  • logicgate
  • · Replies 14 ·
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14
Undergrad Solving the chess game (quantum computer wise)
  • loop quantum gravity
  • · Replies 14 ·
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14
An intuition I had about infinite numbers -- Is it valid?
  • mr3000
  • · Replies 2 ·
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2
High School Having trouble understanding the incompleteness theorem
  • BadgerBadger92
  • · Replies 4 ·
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4
Insights AI Enriched Problem Solving
  • Greg Bernhardt
  • · Replies 30 ·
2
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30
Undergrad Can anyone solve this age problem?
  • Curious Kev
  • · Replies 38 ·
2
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38
High School Why does continuity still feel weird?
  • RicoGerogi
  • · Replies 21 ·
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21
Undergrad Limit behaviour of Fibonacci sequence
  • PeroK
  • · Replies 4 ·
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4
High School Geometry Puzzle: Cut The Figure to Make Two Identical Parts
  • bob012345
  • · Replies 21 ·
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21
Graduate Is my reasoning sound for challenging this exploratory analysis?
  • mattmaci
  • · Replies 5 ·
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5
High School Kilometers to Miles Numerology
  • kuruman
  • · Replies 6 ·
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6
High School Does this equation (Einstein’s field equations in general relativity) equal 12?
  • BadgerBadger92
  • · Replies 33 ·
2
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33
Undergrad The natural numbers and logical consequences of them
  • mr3000
  • · Replies 18 ·
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18
Undergrad Semi-Circles Within a Circle
  • bob012345
  • · Replies 6 ·
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6
Undergrad Why should we need to re-prove theorems that have been proved already?
  • Mike_bb
  • · Replies 3 ·
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3
High School Ant on a stretchy rope puzzle
  • DaveC426913
  • · Replies 38 ·
2
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38
Undergrad Is this proof "by contradiction" or "by contrapositive"?
  • Hill
  • · Replies 7 ·
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7
Undergrad Infinity and 0 (null set) do not exist
  • MDH72
  • · Replies 14 ·
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14
Undergrad A Very Gentle Approach to Thinking About Hyperspheres
  • bob012345
  • · Replies 11 ·
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11
High School Multiplication and Division by Numerical "Trituration"
  • dom_quixote
  • · Replies 5 ·
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5
High School Distance between points on two circles
  • LucKy
  • · Replies 3 ·
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3
High School Four Circle Problem
  • bob012345
  • · Replies 9 ·
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9
Challenge MIT Announces the Largest Collection of Olympiad Math Problems
  • jedishrfu
  • · Replies 2 ·
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2
Graduate A neat fact regarding Cauchy problems for infinite systems
  • wrobel
  • · Replies 3 ·
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3
High School Example of a model for a function
  • Ssnow
  • · Replies 6 ·
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6
High School This One Moved Me
  • bhobba
  • · Replies 12 ·
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12
High School Abel Prize awarded, 2026, to Gerd Faltings
  • WWGD
  • · Replies 1 ·
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1
Graduate About a natural extension of Collatz conjecture
  • coquelicot
  • · Replies 3 ·
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3
High School Potato paradox
  • Gavran
  • · Replies 28 ·
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28
High School Three Squares Problem
  • bob012345
  • · Replies 10 ·
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10
Undergrad Solving ##a^b## and ##b^a## via the Lambert Function
  • jedishrfu
  • · Replies 5 ·
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5
Undergrad Comparing ##a^b## and ##b^a##
  • PeroK
  • · Replies 19 ·
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19
Undergrad Three Circle Problem
  • bob012345
  • · Replies 14 ·
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14
Graduate A global version of the implicit function theorem
  • wrobel
  • · Replies 1 ·
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1
Geometric Game: Fun With Matches (Safe!)
  • bob012345
  • · Replies 40 ·
2
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40
Undergrad What is the most impactful way of introducing Laplace transforms?
  • matqkks
  • · Replies 6 ·
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6
Undergrad Computable sequence of rationals with a noncomputable limit
  • Hill
  • · Replies 8 ·
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8
High School The parallel axiom, Stillwell's "Reverse Mathematics"
  • Hill
  • · Replies 16 ·
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16
Graduate Open problems and suggestions of great mathematical journals
  • V9999
  • · Replies 10 ·
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10
Undergrad Find the Number of Triangles
  • bob012345
  • · Replies 33 ·
2
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33
High School Area of Overlapping Squares
  • bob012345
  • · Replies 10 ·
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10
Insights What Exactly is Dirac’s Delta Function? - Insight
  • Greg Bernhardt
  • · Replies 33 ·
2
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33
Undergrad Trigonometry problem of interest
  • Charles Link
  • · Replies 81 ·
3
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81
High School More similar triangle problems
  • DaveC426913
  • · Replies 23 ·
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23
Undergrad Polynomial vs. Exponential time
  • senmeis
  • · Replies 2 ·
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2
Undergrad There are only finitely many primes
  • martinbn
  • · Replies 7 ·
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7
Undergrad Midpoint(s) of the unbounded number line
  • tomwilliam
  • · Replies 15 ·
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15
High School Arithmetic and our place value system
  • mark2142
  • · Replies 6 ·
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6
High School Can Six Pencils Be Arranged to Each Touch the Other Five?
  • bob012345
  • · Replies 30 ·
2
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30
Undergrad Video on imaginary numbers and some queries
  • PainterGuy
  • · Replies 3 ·
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3
High School Imaginary Pythagoras
  • DaveC426913
  • · Replies 13 ·
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13
High School Happy Pythagorean Day!
  • Astronuc
  • · Replies 8 ·
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8
Insights Fermat's Last Theorem
  • fresh_42
  • · Replies 105 ·
4
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105
Undergrad Useless continued fraction for 1
  • jostpuur
  • · Replies 6 ·
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6
Undergrad Proving Newton's forward difference interpolation formula
  • PLAGUE
  • · Replies 1 ·
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1
Undergrad Geometry problem of interest with a 3-4-5 triangle
  • Charles Link
  • · Replies 59 ·
2
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59
High School What could prove this wrong? I'm having a dispute with friends
  • ducknumerouno
  • · Replies 94 ·
4
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94
Graduate RIP Yvonne Choquet-Bruhat (1923-2025)
  • robphy
  • · Replies 4 ·
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4
High School Videos of 4D Die and Sphere
  • Hornbein
  • · Replies 3 ·
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3
Graduate Article about 17 year-old math talent
  • jasonRF
  • · Replies 1 ·
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1
Undergrad The Mathematical Wizard, A House's Windows, And Solar Flux
  • Young101
  • · Replies 4 ·
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4
Graduate Lectures on integral invariants and Hamiltonian equations
  • wrobel
  • · Replies 16 ·
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16
Insights Fixing Things Which Can Go Wrong With Complex Numbers
  • PAllen
  • · Replies 7 ·
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7
Graduate Is this Recursive Pattern in the Collatz Sequence Known?
  • MrHellmet
  • · Replies 3 ·
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3
Undergrad Why fixed point iteration of ##x^3 = 1-x^2## doesn't converge when ##x_0= 0##
  • PLAGUE
  • · Replies 16 ·
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16
High School Excel: converting a 3-ish week count into a monthly count
  • DaveC426913
  • · Replies 15 ·
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15
High School Geometry Puzzle with 20 points in a cross pattern
  • bob012345
  • · Replies 31 ·
2
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31
High School What is the deepest/most impactful statement that you have ever seen?
  • spaceWizard9000
  • · Replies 46 ·
2
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46
Undergrad Modeled PF Trophies
  • AlexB23
  • · Replies 14 ·
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14
High School Solving equations but getting an identity - what mistakes were made?
  • farfromdaijoubu
  • · Replies 4 ·
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4
High School About a definition: What is the number of terms of a polynomial P(x)?
  • littlemathquark
  • · Replies 48 ·
2
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48
High School "Land capture" graph paper game
  • DaveC426913
  • · Replies 13 ·
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13
High School In a triangle, is the angle between the points of contact of the inscribed circle with the sides 120 degrees?
  • Antoha1
  • · Replies 2 ·
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2
High School How do you multiply fractions again? My brain just froze 😅
  • goodcomfort
  • · Replies 2 ·
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2
Undergrad How to convince someone that an event repeating an infinite number of times does not guarantee every outcome?
  • sairoof
  • · Replies 23 ·
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23
Undergrad Can Angular Velocity Accurately Control Ragdoll Limbs in Game Physics?
  • MadAce
  • · Replies 6 ·
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6
Undergrad ##x\lt y \lt z## positive integer numbers and if ##\dfrac 1x+\dfrac 1y+\dfrac 1z=\dfrac 13##
  • littlemathquark
  • · Replies 6 ·
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6
High School How Many Straight Lines to Connect an N by M Array of Points in a Closed Loop?
  • bob012345
  • · Replies 25 ·
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25
High School The Pitcher's Mound
  • Hornbein
  • · Replies 10 ·
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10
High School Is It Better to Run or Walk in the Rain?
  • Pikkugnome
  • · Replies 46 ·
2
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46
Undergrad How were "e" and "pi" found?
  • mayflowers
  • · Replies 26 ·
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26
Undergrad How was this substitution possible?
  • InDireNeedOfHelp
  • · Replies 5 ·
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5
High School Are there English names for these formulas? (binomial formulas)
  • Trysse
  • · Replies 42 ·
2
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42
High School 1lb cube of 99% pure copper?
  • Coulin
  • · Replies 10 ·
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10
High School Which conditions should I check to see if a quadrilateral is a square?
  • murshid_islam
  • · Replies 17 ·
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17
Graduate !?Puzzle?! -Possible Clue- Split the Difference
  • Andrew153
  • · Replies 12 ·
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12
High School How is it that law of sines does not work in this exercise?
  • mcastillo356
  • · Replies 70 ·
3
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70
High School How to prove this for every Arithmetic Progression?
  • tellmesomething
  • · Replies 12 ·
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12
High School Given an equation, find the value of this expression
  • littlemathquark
  • · Replies 17 ·
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17
Happy Pi Day!
  • diogenesNY
  • · Replies 4 ·
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4
High School Understanding the Pythagorean Theorem
  • wrong thunder
  • · Replies 38 ·
2
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38
Undergrad Billard balls on table
  • littlemathquark
  • · Replies 10 ·
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10
Undergrad How is the Euclid Math Contest marked?
  • Euthenia
  • · Replies 2 ·
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2
High School Estimating ##\pi## with darts
  • jack action
  • · Replies 15 ·
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15
Undergrad Exploring Interesting Mathematical Puzzles
  • wrong thunder
  • · Replies 2 ·
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2
Undergrad Can I add any number of zeros to 0.00 ... 1?
  • nmz
  • · Replies 30 ·
2
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30
High School Sine Multiplication
  • Vilhjalmur Haldorson
  • · Replies 5 ·
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5
(Seemingly) Random Sequences
  • Monoxdifly
  • · Replies 7 ·
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7