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
High School 1 is by definition 0.999999999 9?
  • · Replies 5 ·
Replies
5
Views
2K
Math-y or Nerdy License Plate Ideas
  • · Replies 11 ·
Replies
11
Views
9K
MHB Stuck on a Problem? Get Some Helpful Hints!
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad How to do dimensional analysis of exponential functions?
  • · Replies 15 ·
Replies
15
Views
22K
MHB Solving Nonlinear Equations with Numeric Methods
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Quantitative modeling in social science vs natural science
  • · Replies 2 ·
Replies
2
Views
5K
Resources on Scientific Careers/Graduate School
  • · Replies 1 ·
Replies
1
Views
21K
Undergrad Formula for lengths of a rectangle - why does it give both lengths?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Fitting points to skewed sinusoids
  • · Replies 4 ·
Replies
4
Views
5K
High School Oops! Making Obvious Mistakes in Algebra II
  • · Replies 12 ·
Replies
12
Views
4K
Undergrad Maximum volume of a 3D shape with 3 identical circular profiles from x,y,z.
  • · Replies 2 ·
Replies
2
Views
2K
High School Not Complex Numbers: Are There Any Other Options?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Square roots in quadratic trinomial inequalities
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Graphing a standard quadratic equation?
  • · Replies 4 ·
Replies
4
Views
2K
High School How Do You Pronounce Complex Mathematical Expressions in English?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Prove All Numbers Equal: No 0 Needed!
  • · Replies 8 ·
Replies
8
Views
5K
MHB Equation of Line Passing Through \(A(-5,-4)\) & \(B, C\) & \(D\)
  • · Replies 2 ·
Replies
2
Views
2K
High School How to understand math intuitively?
  • · Replies 9 ·
Replies
9
Views
10K
High School Is there a math symbol that stands for becomes?
  • · Replies 6 ·
Replies
6
Views
16K
MHB Solving the Font Size Puzzle for Thumbnail Layers
  • · Replies 1 ·
Replies
1
Views
2K
High School Knowledge of division & fractions indicates math success
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Is expansion necessary for this quadratic equation?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Trying to figure out a single variable expression for Sin
  • · Replies 21 ·
Replies
21
Views
5K
Undergrad Min and max in order of operations
  • · Replies 5 ·
Replies
5
Views
4K
High School How can the expression (a^n+b^n)/(a+b) be simplified?
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Find Gaps Between Primes: Formula & Tips
  • · Replies 18 ·
Replies
18
Views
4K
Pop-math book publishing coincidence
  • · Replies 1 ·
Replies
1
Views
2K
High School An angle - why an angle is the ratio of two sides of a triangle?
  • · Replies 5 ·
Replies
5
Views
4K
High School What is the missing pattern in this sequence and why?
  • · Replies 1 ·
Replies
1
Views
5K
MHB What is the inverse function of erf?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad Theory of quadratic equations
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Is there an alternate nth power function without exponents?
  • · Replies 14 ·
Replies
14
Views
4K
MHB Can You Help Me Count the Different Ways to Organize My List?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What Are Engaging Math Project Ideas for a Statistics Major?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad What is the value of x in the equation 51^(-51)≡ x (mod 8)?
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad How many punching bags do you need to survive a bullet ricocheting in a room?
  • · Replies 48 ·
2
Replies
48
Views
9K
Graduate How Many Mathematicians Are Secretly Trying to Solve the Riemann Hypothesis?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Why Isn't x^2-1 Divisible by m?
  • · Replies 6 ·
Replies
6
Views
3K
Solve Math Doubt: Why Did This Happen?
  • · Replies 8 ·
Replies
8
Views
3K
MHB Percent of perfect squares that have an odd digit for their hundreds place
  • · Replies 6 ·
Replies
6
Views
3K
High School Digit-by-digit calculation of square root
  • · Replies 2 ·
Replies
2
Views
6K
High School What Exactly are the Roots of a Polynomial?
  • · Replies 7 ·
Replies
7
Views
3K
High School What Are Some Practical Uses of Logarithms?
  • · Replies 18 ·
Replies
18
Views
6K
Undergrad How Does Crosswind Affect Flight Time and Heading?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Apparent Size of Sun: Subtended Angle Calculated by Deniz
  • · Replies 1 ·
Replies
1
Views
4K
Graduate Euler's derivation of Riemann Zeta Function for even integers
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Cartesian to Spherical co-ordinates (x,y,z) = (∞,∞,∞) | φ,θ are different.
  • · Replies 20 ·
Replies
20
Views
4K
Undergrad Solve an exponent equation without restricting the domain?
  • · Replies 6 ·
Replies
6
Views
2K
MHB Calculating Real Estate Commission for $400,000 Price
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Question about representation of numbers in different bases
  • · Replies 2 ·
Replies
2
Views
2K
MHB Finding the Right Revisiting a Two-Year-Old Problem
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Is there such a thing as an uncountable polynomial?
  • · Replies 30 ·
2
Replies
30
Views
5K
Undergrad Solving Polynomials of Increasing Degree
  • · Replies 6 ·
Replies
6
Views
2K
MHB Prove Every Room w/ Odd Doors in House Has a TV Set - H for American Buyer
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Why Do Physicists Use the Term Unity Instead of 1 in Crystallography?
  • · Replies 3 ·
Replies
3
Views
3K
Does chess ability and mathematical ability go hand-in-hand?
  • · Replies 20 ·
Replies
20
Views
9K
MHB Math Exam Woe: Unsolvable Bearing Question
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Compound fractions decaying over time
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Prove Triangle ABC has Angle BAC = 72 Degrees
  • · Replies 5 ·
Replies
5
Views
3K
High School Writing Out Equations with a Modulo Function
  • · Replies 7 ·
Replies
7
Views
4K
High School Converting Rectangular to Polar & Polar to Rectangular: Engineering Uses
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Solving for d in ((a+b)^n)-(a^n+b^n) - ((c+d)^n)-(c^n+d^n)
  • · Replies 17 ·
Replies
17
Views
4K
MHB Help Me Find the Perimeter of Tn+1
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Making equations with six six-sided dice
  • · Replies 2 ·
Replies
2
Views
3K
MHB CaptainBlack's Occasional Problem #4
  • · Replies 2 ·
Replies
2
Views
2K
High School Principal( 1 + interest )exponent [on a simple calc.]
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Coordinates of a point outside a plane
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad How would you go about solving these set of equations?
  • · Replies 3 ·
Replies
3
Views
2K
High School The angle that a vector makes when it is parallel to x-axis.
  • · Replies 4 ·
Replies
4
Views
3K
High School Can someone tell me if this makes sense? (Equalities question)
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Are the min max is equivalent to max min?
  • · Replies 8 ·
Replies
8
Views
7K
Undergrad How to Understand Non-Rational Exponents Intuitively?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad A*log(b), Separating the two variables
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Is There a Formula to Populate a Table?
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Question regarding digits in base 2
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Does Descartes Rule of Signs Count Multiplicities in Its Upper Bound for Roots?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad General form of the quadratic equation
  • · Replies 13 ·
Replies
13
Views
5K
High School Books to Strengthen Eucleodian Geometry Concepts
  • · Replies 10 ·
Replies
10
Views
4K
High School Definition of Order of Operations
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Tech drawing - ellipses in perspective
  • · Replies 7 ·
Replies
7
Views
5K
High School New formula that can divide by zero to give an integer
  • · Replies 20 ·
Replies
20
Views
5K
High School Can complex numbers store multiple values, such as position and velocity?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Just a simple order of operations question
  • · Replies 4 ·
Replies
4
Views
3K
High School Found a series problem online, extremely hard to solve. help
  • · Replies 4 ·
Replies
4
Views
4K
High School What Does Non Integral Mean in Understanding Concepts?
  • · Replies 3 ·
Replies
3
Views
3K
High School Find LCM of 2 Fractions: 2/3 & 5/8 | Help
  • · Replies 17 ·
Replies
17
Views
64K
High School Area of Shaded Region: Solve without Year 9 Maths
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Is Silent Healing CD Really Silent?
  • · Replies 16 ·
Replies
16
Views
9K
MHB Does the Inequality Involving Sums of Consecutive Twin Prime Pairs Always Hold?
  • · Replies 1 ·
Replies
1
Views
2K
High School Understanding Equation Conversion: Step-by-Step Guide for Combining Equations
  • · Replies 4 ·
Replies
4
Views
3K
MHB How Does 1/89 Relate to Fibonacci Numbers in Its Decimal Expansion?
  • · Replies 2 ·
Replies
2
Views
2K
High School Why does this happen with my graph?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Algebraic proofs of trigonometric identities
  • · Replies 13 ·
Replies
13
Views
8K
MHB Help with dividing an exponent
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Solving Brocard's Problem: What Values for n?
  • · Replies 13 ·
Replies
13
Views
4K
Undergrad ((e^(i*pi))^x)-((e^(-i*pi))^x)=0? how?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad A close approximation for square root of 2.
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Proving Area of n-sided Polygons Maximizes When they are Regular?
  • · Replies 4 ·
Replies
4
Views
8K
High School End of Geometry - Algebra II next year
  • · Replies 2 ·
Replies
2
Views
2K
Graduate How can a set of max 5 points be found to encompass a 4D hypercube?
  • · Replies 6 ·
Replies
6
Views
3K