General Math Forum

Post thread
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

Tusi couple

Math Problem of the Week

Just a kinematics problem from a Russian physics olympiad

MATLAB, Maple, Mathematica, LaTeX

Cone‑like layered structure in 2D FFT
High School Finding Online PEMDAS Calculators
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Elementary Functions - What Is The Exact Definition?
  • · Replies 8 ·
Replies
8
Views
3K
High School Self-descriptive Physical Object
  • · Replies 33 ·
2
Replies
33
Views
3K
MHB 7.t.27 write eq for a sinusiol graph
  • · Replies 2 ·
Replies
2
Views
1K
High School Square Root of an Odd Powered Integer is Always Irrational?
  • · Replies 31 ·
2
Replies
31
Views
4K
MHB Finding the Measure of Angle KPM Using Angle Bisector Theorem
  • · Replies 2 ·
Replies
2
Views
1K
MHB A-level Mechanics Q3: Need Help w/Calculations
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Geometry/Trig Problem -- Well Constrained but Difficult
  • · Replies 29 ·
Replies
29
Views
3K
Undergrad Sigma notation for only even index iterations
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Why did I lose 60% on my proof of Generalized Vandermonde's Identity?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad The number of intersection graphs of ##n## convex sets in the plane
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Is Group Multiplication Possible in Non-Mathematical Topics?
  • · Replies 6 ·
Replies
6
Views
3K
MHB Problems involving Trigonometric Identities
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Relationship between factorials and squares of natural numbers
  • · Replies 12 ·
Replies
12
Views
4K
Undergrad Transformation of Functions: How Do Domain and Range Change?
  • · Replies 4 ·
Replies
4
Views
2K
MHB What are the coordinates of points equidistant from (1,0) and (5,4)?
  • · Replies 6 ·
Replies
6
Views
2K
High School Math Lapsus: Experiences & Reflections
  • · Replies 5 ·
Replies
5
Views
1K
MHB Troubleshooting Inequality: Can't Seem to Solve the Last One
  • · Replies 2 ·
Replies
2
Views
1K
MHB How many stickers did Angel and Kareem have altogether?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Need help coming up with an equation for a bend angle calculation
  • · Replies 7 ·
Replies
7
Views
3K
High School Periodic spiral graph interpretation
  • · Replies 17 ·
Replies
17
Views
2K
High School Can I use the circle circumference formula for a sphere?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Find the missing number in the series please
  • · Replies 1 ·
Replies
1
Views
937
MHB Rearranging Formulas: Finding W in Terms of M and L
  • · Replies 5 ·
Replies
5
Views
2K
MHB Find the inverse of f(x) in 4 minutes
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad A Trick to Memorizing Trig Special Angle Values Table
  • · Replies 3 ·
Replies
3
Views
2K
MHB Can you find the area of the blue triangle in just 3 minutes?
  • · Replies 2 ·
Replies
2
Views
1K
MHB Decreasing Values: 1.000000 to 0.670625
  • · Replies 2 ·
Replies
2
Views
1K
High School Hilbert's paradox of the Grand Hotel - An easier solution?
  • · Replies 73 ·
3
Replies
73
Views
6K
MHB Mechanics- connected particles
  • · Replies 6 ·
Replies
6
Views
2K
MHB The Benefits of Organic Gardening"Organic Gardening: Unlocking Nature's Benefits
  • · Replies 1 ·
Replies
1
Views
993
MHB The Benefits of Learning a Second Language
  • · Replies 2 ·
Replies
2
Views
1K
High School How do mathematicians come up with new proofs?
  • · Replies 4 ·
Replies
4
Views
2K
High School Happy Christmas: Is it Really True?
  • · Replies 2 ·
Replies
2
Views
1K
High School Accuracy of a smith's crafted metal disc
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Is There a Hidden Pattern in This Sequence of Numbers?
  • · Replies 7 ·
Replies
7
Views
2K
High School How to calculate size of objects in digital photo
  • · Replies 19 ·
Replies
19
Views
4K
MHB -6.1.12 solve for x 3^{2x}=105
  • · Replies 6 ·
Replies
6
Views
1K
MHB -s6.6 solve exponential eq 3^x-14\cdot 3^{-x}=5
  • · Replies 1 ·
Replies
1
Views
1K
MHB Solving g(x)-h(x) <0: Find a, b, c, d
  • · Replies 2 ·
Replies
2
Views
2K
MHB B12 using counters of algebra eq
  • · Replies 2 ·
Replies
2
Views
1K
MHB B20.<= to the length of the dividend
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Proof of average height of half circle
  • · Replies 19 ·
Replies
19
Views
4K
MHB Calculating rates of two points moving along a circle
  • · Replies 4 ·
Replies
4
Views
1K
MHB -c5.LCM and Prime Factorization of A,B,C
  • · Replies 3 ·
Replies
3
Views
1K
MHB -c6. Find the GCF and the LCF of A and B.
  • · Replies 1 ·
Replies
1
Views
1K
Graduate What is the most difficult text on mathematics?
  • · Replies 169 ·
6
Replies
169
Views
31K
MHB -c11.interpretation of division
  • · Replies 1 ·
Replies
1
Views
1K
MHB -c03 write prime factorization of the LCM of A and B
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Linus Pauling on the Role of Numbers in Science: A Request for Reference
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How would you have answered Richard Feynman's challenge?
  • · Replies 7 ·
Replies
7
Views
2K
MHB Optimizing B for Inequality with Floor Function
  • · Replies 1 ·
Replies
1
Views
2K
High School Cross section (?) of Great Pyramid from drone footage
  • · Replies 47 ·
2
Replies
47
Views
6K
MHB Which Polymer Materials Meet These Specific Criteria?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Solving Quadratic Equations with Binary Operator $\otimes$
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Help with rewriting a compound inequality
  • · Replies 10 ·
Replies
10
Views
2K
MHB Is the Calculation of $(3 \diamond 8) \square 2 = 1940$ Correct?
  • · Replies 2 ·
Replies
2
Views
1K
MHB What is the Binary Operator $\oplus$ and its Significance?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Image Markup Questions: Refresh Basics in V18 Binary Operators
  • · Replies 8 ·
Replies
8
Views
1K
MHB V.02.Binary operator by a*b=a+8b
  • · Replies 2 ·
Replies
2
Views
937
MHB How to Solve a Composition of Functions g(f(x))?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad A question about a small step in the proof of RSA encryption
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Equation for circle points in 3D
  • · Replies 3 ·
Replies
3
Views
4K
Insights An Introduction to Theorema Primum
  • · Replies 0 ·
Replies
0
Views
4K
MHB Can you solve this problem using bar models and ratios?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Is the odd root of an even number always an irrational number?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Multiplication and addition definition of congruence classes
  • · Replies 5 ·
Replies
5
Views
2K
MHB How Do You Calculate the Difference Between d and f?
  • · Replies 1 ·
Replies
1
Views
1K
High School Round-Robin Matching Teams (Darts)
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad Ancient mathematics/History of mathematics
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad (Elementary number theory) Understanding congruence and modulus
  • · Replies 9 ·
Replies
9
Views
2K
MHB Proving Equivalence of f(x) and g(x)
  • · Replies 2 ·
Replies
2
Views
1K
MHB Proving Equivalence of f(x) and g(x)
  • · Replies 5 ·
Replies
5
Views
2K
Are There Other Confirmed Geniuses in this Forum?
  • · Replies 20 ·
Replies
20
Views
2K
Undergrad What is an object with a zero square?
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Can the Housie Game Incorporate Negative and Decimal Numbers?
  • · Replies 2 ·
Replies
2
Views
1K
MHB How can I solve these induction and function problems in my French homework?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Just for fun: math brain teaser
  • · Replies 8 ·
Replies
8
Views
3K
MHB How Many Possible Cards Can Be Made with Sasha, Pasha, and Masha?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Interpolating Points with Continuous Modular Functions?
  • · Replies 5 ·
Replies
5
Views
2K
MHB How can I solve the problem of $e^x-\ln{x}=4$ without a calculator?
  • · Replies 10 ·
Replies
10
Views
2K
MHB Find A,B,C for Factorial Equation
  • · Replies 4 ·
Replies
4
Views
2K
MHB Get 25% Off - Save on E-Commerce Prices
  • · Replies 2 ·
Replies
2
Views
1K
High School 14-year-old won a prestigious award for his discoveries on 'antiprime'
  • · Replies 1 ·
Replies
1
Views
1K
MHB Solve $(x^2-7x+11)^{x^2-13x+42}=1$ Equation
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Five points in space with rational distances that are not co-linear
  • · Replies 13 ·
Replies
13
Views
4K
Undergrad The “philosophical cornerstone” of the Moller-Plesset perturbation theory
  • · Replies 1 ·
Replies
1
Views
2K
MHB Proving trigonometric functions
  • · Replies 9 ·
Replies
9
Views
2K
MHB New Billboard Dimensions: 4m x (4m + 96cm^2)
  • · Replies 2 ·
Replies
2
Views
1K
MHB How can I get equal columns and rows from a total?
  • · Replies 1 ·
Replies
1
Views
1K
MHB Solving $\tan^2x + \tan^2{2x} + \cot^2{3x} = 1$ in R
  • · Replies 6 ·
Replies
6
Views
2K
High School Looking for creative solutions to this math problem
  • · Replies 14 ·
Replies
14
Views
3K
Graduate Mathematics Behind Global Currency as a Wealth Inequality Regulation System
  • · Replies 26 ·
Replies
26
Views
2K
High School When you have no idea how to work out a problem
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Variation of Catalan Conjecture
  • · Replies 22 ·
Replies
22
Views
2K
High School Cosine of 1 degree and cosine of 60 degrees?
  • · Replies 34 ·
2
Replies
34
Views
4K
MHB What Makes Mexico City's History So Fascinating?
  • · Replies 3 ·
Replies
3
Views
1K
MHB Engineering Mechanics: airplane landing
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Which kind of function is this?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Is arcsec = 1 divided by arccos ? Arcsec = 1/arccos
  • · Replies 34 ·
2
Replies
34
Views
5K