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

MHB Deriving the first and second order Newton-Cotes formulas

Math Problem of the Week

Undergrad Sum of an Alternating Series
Undergrad What is the Key Angle for Creating Sander's Paralellogram?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Prove Inequality: A,A', B, B' in [0,1]
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Fundamental elements transformation
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Question about the Fundamental Theorem of Algebra
  • · Replies 14 ·
Replies
14
Views
3K
Undergrad Test for inconsistency of system of nonlinear equations
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Solve Mystery of Phi-Based Equation: Help Colin
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Why are there no other gamma functions?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Why combination and permutation is useless in physics
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad How do I rearrange this equation and make x the subject
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Explaining the Vertical Line Feature in Graphing Equations
  • · Replies 37 ·
2
Replies
37
Views
4K
Undergrad Bertrand's Postulate and Erdős' Proof
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad The largest n such that K_n can be expressed as the union of
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How can I accurately calculate transferred spin in my 2D physics engine?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Relationship between the radius and area of liquid in a cylinder
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad What is a good way to introduce Wilson's Theorem?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad How to motivate the study of Fermat's Little Theorem
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad What is the purpose of cross multiplication in vector multiplication?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Is there any solution to the equation x^(0.5)+1=0?
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad Solving Equations with Surds | Get Help Now
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad How to Calculate an Offset for Centre of Gravity using Weight and Distance?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Can Division by Zero Be Solved in Mathematics?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Graph Theory: I understanding the corollaries
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad The creation of open problems in Mathematics
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad What resources are there for RSA for the layman?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Another negative one equals one proof
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad Angle between vectors via scalar product vs vector product
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Micromass' big October challenge
  • · Replies 125 ·
5
Replies
125
Views
20K
Undergrad Spherical Angle Math: Pyramid Angles Constant?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Find t to Satisfy e^iat=e^ia_0, e^ibt=e^ib_0, e^ibct=e^ic_0
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Does neusis constructions include cardioid?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Why is Hilbert not the last universalist?
  • · Replies 42 ·
2
Replies
42
Views
12K
Undergrad Why Does the Equation ##\sqrt{a^2} = a## Lead to Confusion in Mathematics?
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Convention of order of operations
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad How to obtain the inverse (reciprocal) of a line segment?
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad How do you answer "So what's the practical application....?"
  • · Replies 157 ·
6
Replies
157
Views
18K
Undergrad A Function for multiple 2D Gaussians
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Question inspired by reviewing conic sections
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Proving Fermat's last theorem with easy math
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Sqrt of y^2=x^2: Why y=x or y=-x?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Can anyone explain the Gamma function to me?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Question about using the word unique
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad How to prove that 2n=1 has no integer solutions
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Desymmetrization of a combinatorial set
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Why are 0 and pi/2 the solutions for sin(x)=0 and cos(x)=0?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Trigonometry problem for collision detection and reflection
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Open problems and conjectures in Mathematics
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Newton Divided Difference Interpolation Polynomial
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad What is the inequality for prime numbers in the Prime Number Theorem proof?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Right Triangle and the Pythagorean Triple Formula
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Can a 3D object displace a 4D object?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Prime factors of an expression
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Why are the bins N/2 - N not a mirror image of bins 0 - N/2 in FFT analysis?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is there a happy semigroup of concatenated numbers?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad A simple theorem we pondered in our ski lodge.... (sum of Fibonacci numbers)
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Product of functions to express any function
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad A Simple Equation, but a Complicated Solution
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Conceptual Question About Polar Coordinate System
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Representing sums as sigma notation?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad How can I improve my proof skills with internet resources?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Is there a geometrical derivation of e
  • · Replies 23 ·
Replies
23
Views
2K
Undergrad Understanding Image & Pre-Image: An Example
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Logarithm of negative base to a number resulting in even
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Sum-difference trig identity help
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad How to solve this system of equations of trig functions
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Solving For Right Triangles With A Twist
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Real reason why 1 isn't prime?
  • · Replies 23 ·
Replies
23
Views
3K
Undergrad Proof of Ramanujan's Problem 525 with A=5, B=4
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Equilateral Ellipse - Formula & References
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Does mobius transformation assume 3-D Euclidean space?
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Irrational numbers aren't infinite. are they?
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad Mobius Transformation: Physical Significance?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Question about Fourier transformation
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad 360 degrees and the Golden Ratio
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad How Often is First-Order and Modal Logic Used in Math?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Why is the first term zero in the Virial Theorem derivation?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Scalar quantities and complex numbers
  • · Replies 4 ·
Replies
4
Views
5K
Undergrad Find Oven Temperature at various moderate mode?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Is Zero x Infinity Really a Real Number?
  • · Replies 64 ·
3
Replies
64
Views
8K
Undergrad Does Noether theorem explain the constant speed of light?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Connections of Putnam and IMC with research in Mathematics
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Can this method be used to prove the Collatz Conjecture?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Solve Lagrange Multiplier Mystery: ∂Σ{Ni}/∂Nj = ∂N/∂Nj=0
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Primality test from pascal triangle
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Is the Series 2,3,5,8,13,21 a Fibonacci Sequence?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Symmetry involving prime multiplication modulo 8
  • · Replies 21 ·
Replies
21
Views
3K
Undergrad Inversion of functions that aren't 1-1
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Formula involving polynomial sequences + recursive reps
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad Why does +bc become negative in the proof of the Euclidian Algorithm?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad New theorems in undergraduate subjects
  • · Replies 4 ·
Replies
4
Views
1K
Undergrad Math Categorization: Number Theory, Calculus & More
  • · Replies 52 ·
2
Replies
52
Views
7K
Undergrad Convert 2 variables into 1 representative variable
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Solve Algebraic Equation: ax^(n-1) - x + 1 - a = 0
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad A question about formulation of problems in mathematics
  • · Replies 6 ·
Replies
6
Views
1K
Undergrad Proving that a solution to a recurrence relation is true
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Finding an Approachable Solution for x of ex = 1/x
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Intuition for Euler's identity
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Two questions about general math
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Why Is There No Simple Formula for the Sum of a Harmonic Progression?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Approach to mathematics (tips?)
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Is angle a vector or a scalar quantity?
  • · Replies 2 ·
Replies
2
Views
11K