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

Math Guides, Tutorials and Articles

MHB Deriving the first and second order Newton-Cotes formulas

Math Problem of the Week

Undergrad Sum of an Alternating Series
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MHB Problem-Solving Strategy for Dynamics Problems
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High School List of Online Calculators for Math, Physics, Earth and Other Curiosities
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11K
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Graduate What Topics Do These Math FAQs Cover?
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6
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Undergrad Solving ##a^b## and ##b^a## via the Lambert Function
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5
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156
Undergrad Comparing ##a^b## and ##b^a##
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19
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936
Undergrad Trisection: regular polygon
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1
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197
Undergrad Three Circle Problem
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14
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High School Three Squares Problem
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9
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Graduate A global version of the implicit function theorem
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904
Graduate About a natural extension of Collatz conjecture
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0
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344
Geometric Game: Fun With Matches (Safe!)
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2
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40
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Undergrad What is the most impactful way of introducing Laplace transforms?
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6
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Undergrad Computable sequence of rationals with a noncomputable limit
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8
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737
High School The parallel axiom, Stillwell's "Reverse Mathematics"
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16
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Graduate Open problems and suggestions of great mathematical journals
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10
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3K
Undergrad Find the Number of Triangles
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33
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High School Area of Overlapping Squares
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10
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Insights What Exactly is Dirac’s Delta Function? - Insight
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Undergrad Trigonometry problem of interest
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81
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9K
High School More similar triangle problems
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23
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2K
Undergrad Polynomial vs. Exponential time
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2
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961
Undergrad There are only finitely many primes
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7
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Undergrad Midpoint(s) of the unbounded number line
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15
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1K
High School Arithmetic and our place value system
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6
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925
High School Can Six Pencils Be Arranged to Each Touch the Other Five?
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2
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30
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3K
Undergrad Video on imaginary numbers and some queries
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3
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High School Imaginary Pythagoras
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13
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High School Happy Pythagorean Day!
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8
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972
Insights Fermat's Last Theorem
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Undergrad Useless continued fraction for 1
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6
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Undergrad Proving Newton's forward difference interpolation formula
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Undergrad Geometry problem of interest with a 3-4-5 triangle
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High School What could prove this wrong? I'm having a dispute with friends
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Graduate RIP Yvonne Choquet-Bruhat (1923-2025)
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4
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High School Videos of 4D Die and Sphere
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3
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Graduate Article about 17 year-old math talent
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1
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796
Undergrad The Mathematical Wizard, A House's Windows, And Solar Flux
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4
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813
Graduate Lectures on integral invariants and Hamiltonian equations
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16
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Insights Fixing Things Which Can Go Wrong With Complex Numbers
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7
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6K
Graduate Is this Recursive Pattern in the Collatz Sequence Known?
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3
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1K
Undergrad Why fixed point iteration of ##x^3 = 1-x^2## doesn't converge when ##x_0= 0##
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16
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High School Excel: converting a 3-ish week count into a monthly count
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15
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High School Geometry Puzzle with 20 points in a cross pattern
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31
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4K
High School What is the deepest/most impactful statement that you have ever seen?
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Undergrad Modeled PF Trophies
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14
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High School Solving equations but getting an identity - what mistakes were made?
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4
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High School About a definition: What is the number of terms of a polynomial P(x)?
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High School "Land capture" graph paper game
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13
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High School In a triangle, is the angle between the points of contact of the inscribed circle with the sides 120 degrees?
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High School How do you multiply fractions again? My brain just froze 😅
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Undergrad How to convince someone that an event repeating an infinite number of times does not guarantee every outcome?
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23
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Undergrad Can Angular Velocity Accurately Control Ragdoll Limbs in Game Physics?
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Undergrad ##x\lt y \lt z## positive integer numbers and if ##\dfrac 1x+\dfrac 1y+\dfrac 1z=\dfrac 13##
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6
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High School How Many Straight Lines to Connect an N by M Array of Points in a Closed Loop?
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25
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High School The Pitcher's Mound
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10
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High School Is It Better to Run or Walk in the Rain?
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2
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9K
Undergrad How were "e" and "pi" found?
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26
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Undergrad How was this substitution possible?
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5
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High School Are there English names for these formulas? (binomial formulas)
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42
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High School 1lb cube of 99% pure copper?
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10
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3K
High School Which conditions should I check to see if a quadrilateral is a square?
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17
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Graduate !?Puzzle?! -Possible Clue- Split the Difference
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High School How is it that law of sines does not work in this exercise?
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High School How to prove this for every Arithmetic Progression?
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High School Given an equation, find the value of this expression
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Happy Pi Day!
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High School Understanding the Pythagorean Theorem
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Undergrad Billard balls on table
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Undergrad How is the Euclid Math Contest marked?
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2
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High School Estimating ##\pi## with darts
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Undergrad Exploring Interesting Mathematical Puzzles
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Undergrad Can I add any number of zeros to 0.00 ... 1?
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High School Sine Multiplication
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5
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MHB (Seemingly) Random Sequences
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7
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2K
Undergrad Open problems in continued fractions
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6
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4K
Graduate Exploring Unconventional Addition: Can Mathematics Embrace New Foundations?
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High School Is this a new theorem?
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Undergrad Fermat point for quadrilaterals
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7
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Undergrad ABC triangle with integer sides
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17
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High School Confused about ciphers in the book 'Arithmetic for the Practical Man'
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Graduate Possible number of chess games
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High School Nonsense can be truth in logic?
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Undergrad Relevance of an orphaned equation
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High School Question about PEMDAS/BODMAS ambiguity
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High School Need an on-line calculator for a simple calculation
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12
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Undergrad Transforming coordinates between Cartesian and spherical
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Undergrad Solving simultaneous equations
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5
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Undergrad Can anyone solve this age problem?
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High School Fractional/decimal powers
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Undergrad My attempt to understand horizontal transformations of functions
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6
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Graduate Integral Points of an Elliptic Curve over a Cyclotomic Tower
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Undergrad Proving that fractions are the same as division
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2
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Graduate Proving Goldbach's conjecture by induction (or why it doesn't seem to work)
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10
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High School A simple trigonometry problem: Put eight coins around a central coin
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2
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High School Tips on developing and improving number sense and basic math skills
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13
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High School I had a question about a way to write Euler's identity
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10
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Undergrad Is Bing Chat Reliable for Math and Physics Queries?
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16
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Undergrad Evaluation of the sum 1^m+3^m+5^m+ ....................(2n+1)^{m}
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High School How to find the objects' areas in this photo in mm^2?
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14
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High School Older student going back to basics
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4
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Financial Math questions?
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1
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High School New solutions to old, historic problems
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2
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3K
High School How to cut a plate onto a tube at an angle?
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1
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2K