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 Solving Arctan(x/y) - 90degrees
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Solving a Problem with Two Gear Wheels and a Chain
  • · Replies 6 ·
Replies
6
Views
3K
High School Is Pi Infinite and What Does It Mean for Science?
  • · Replies 87 ·
3
Replies
87
Views
180K
Undergrad Solving Math Induction: Prove 1^3 + 2^3 + 3^3 + 4^3 ... + n^3 = ((n^2 + n)/2)^3
  • · Replies 2 ·
Replies
2
Views
3K
High School Designing a Car: Finding the Right Fuel Tank Size
  • · Replies 1 ·
Replies
1
Views
3K
High School XOR of 2 Sets: A and B - Get the Answer
  • · Replies 5 ·
Replies
5
Views
12K
High School Explaining steps in simplification
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Curry Triangle Paradox: Rearranging Pieces to Figure of Less Area?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad How can you derive (P v ~P) in SD?
  • · Replies 6 ·
Replies
6
Views
12K
Where Can I Find Instructions for Posting Math Symbols?
  • · Replies 2 ·
Replies
2
Views
3K
High School Trig Problem need someone to explain this
  • · Replies 1 ·
Replies
1
Views
2K
High School How Do You Solve for X in This Equation?
  • · Replies 3 ·
Replies
3
Views
3K
High School Does the integral symbol have a name?
  • · Replies 7 ·
Replies
7
Views
32K
What Is the Puzzle on Goth1337's Page?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Prove that the sum of two odd primes will never result in a prime?
  • · Replies 3 ·
Replies
3
Views
7K
Undergrad Proving the Max Binomial Coefficient for n and r
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Spectral Analysis: alternatives to Fourier Transforms?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Can Triangulation Describe Distance in Spherical or Euclidean Geometry?
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Problem of the week (a memory refresher)
  • · Replies 6 ·
Replies
6
Views
6K
Undergrad What are the extra terms in the k.e expression
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Interesting quote from a book by Einstein
  • · Replies 4 ·
Replies
4
Views
5K
Undergrad Explore Higher Order Operators
  • · Replies 9 ·
Replies
9
Views
3K
High School A few problems for math league
  • · Replies 16 ·
Replies
16
Views
8K
Undergrad Solving the Equation sin(x) + sqrt(3)cos(x) = 1
  • · Replies 12 ·
Replies
12
Views
3K
High School Division Algorithm: Find q & r for a=-5286 and b=19
  • · Replies 1 ·
Replies
1
Views
3K
Graduate How Can Lee's Claim Be Disproved?
  • · Replies 75 ·
3
Replies
75
Views
23K
Graduate How Do Artificial Neural Networks Use Output Data to Approximate Functions?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Proving Parallelogram PQRS & Quadrilateral ABCD: Help Needed
  • · Replies 6 ·
Replies
6
Views
12K
Undergrad What Are the Key Differences Between Derivatives and Averages in Research?
  • · Replies 4 ·
Replies
4
Views
3K
High School Algebra II: Direct/Inverse Variation & Translation Help
  • · Replies 4 ·
Replies
4
Views
5K
High School 3 unknown variables- I'm lost one this one right now
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad What is the Trace Theorem? Calc I Seminar
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Prove that of a,b,c are natural numbers
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Pumpkin Swing: Calculating Speed at θ=30°, L=5m, g=9.8m/s2, m=10kg
  • · Replies 14 ·
Replies
14
Views
3K
Undergrad Calculus I & II (BC, roughly) - can it be done in 8 weeks?
  • · Replies 12 ·
Replies
12
Views
10K
Undergrad (-2)^some decimal = a + bi? why?
  • · Replies 2 ·
Replies
2
Views
2K
High School What is the purpose of finding a lower bound in the Traveling Salesman Problem?
  • · Replies 4 ·
Replies
4
Views
5K
High School Is x^3 - x + 1 an Even, Odd, or Neither Function?
  • · Replies 3 ·
Replies
3
Views
7K
Graduate Finding Solutions to y^x = x^y
  • · Replies 3 ·
Replies
3
Views
3K
High School What are complex numbers used for
  • · Replies 9 ·
Replies
9
Views
3K
High School Find a 5-Digit Number with Unique Prime & Square Digits
  • · Replies 4 ·
Replies
4
Views
3K
High School Talk about lines, curves, functions and limits?
  • · Replies 1 ·
Replies
1
Views
4K
High School Solving Equations: Help for Math-Rusty Students
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Solving Cube & Sphere Geometry Problem - Help Needed
  • · Replies 3 ·
Replies
3
Views
3K
High School Solving the Sum of Squares of 3 Consecutive Odd Numbers
  • · Replies 2 ·
Replies
2
Views
3K
High School How Do You Solve a Train Speed Problem with a Snow-Drift Interruption?
  • · Replies 3 ·
Replies
3
Views
2K
High School Discrete Math Definition - What Is Discrete Math?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Find the 9 Values of a Set of Positive Integers
  • · Replies 4 ·
Replies
4
Views
2K
High School Proving that Any Number Ending in 5 Squared Equals 25
  • · Replies 9 ·
Replies
9
Views
3K
  • Poll Poll
What Are the Statistics for Valentine's Day?
  • · Replies 30 ·
2
Replies
30
Views
7K
High School Is Sqrt() More Than Just X^0.5?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Is the Sum of Square Roots of 2 and 3 Irrational? A Proof by Contradiction
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad Chord parallel to AB and 2CD=AB
  • · Replies 4 ·
Replies
4
Views
7K
High School Solving Algebra of Functions: f(500)=3, f(600)?
  • · Replies 3 ·
Replies
3
Views
2K
High School Arrange the numbers 1 through 10 in the shape of a pyramid
  • · Replies 5 ·
Replies
5
Views
5K
High School Area of a right-angled triangle
  • · Replies 35 ·
2
Replies
35
Views
28K
Undergrad Function f(x): Rationals = 0, Irrationals = 1
  • · Replies 8 ·
Replies
8
Views
5K
Undergrad How do I solve problems with decimals using 2's complement arithmetic?
  • · Replies 2 ·
Replies
2
Views
20K
High School Solving a Math Problem: Number Interchange & 9 More
  • · Replies 3 ·
Replies
3
Views
2K
High School How do vectors and derivation relate in mathematics?
  • · Replies 9 ·
Replies
9
Views
4K
High School Solve 2x + 2y + 50 = 2x + 2y + 50 for x: Problem Solving with 2D Matrices
  • · Replies 3 ·
Replies
3
Views
2K
High School How can billiard be used to illustrate any laws of mathematics?
  • · Replies 1 ·
Replies
1
Views
3K
How Did Ptolemy and Copernicus Shape the Unity of Mathematics?
  • · Replies 31 ·
2
Replies
31
Views
5K
Undergrad Analyzing Arc Equations - Why are x1,x2 & y1,y2 Half Circles?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Can multi digit numbers be made into a single digit using a new base?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Is Motion Really Impossible Due to the Infinite Divisibility of Space?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Philosophy of Zero: Math Discussion & Resources
  • · Replies 13 ·
Replies
13
Views
8K
High School Explanation on the term calculus maths?
  • · Replies 1 ·
Replies
1
Views
2K
Career in mathematics or physics
  • · Replies 6 ·
Replies
6
Views
2K
High School Find Perpendicular Lines Algebraically: Tips & Tricks
  • · Replies 2 ·
Replies
2
Views
3K
High School How was pi discovered, and how is it calculated?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How can we find the root for high degree polynomial functions?
  • · Replies 1 ·
Replies
1
Views
3K
High School Selling Eggs: Duck or Hen x2 for 1 Basket
  • · Replies 1 ·
Replies
1
Views
2K
High School Ram's Tricky Cardboard Challenge: What % Remains?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Archimedes and Calculus: A Lost Connection?
  • · Replies 13 ·
Replies
13
Views
5K
High School Adding f(x) and g(x): Domain and Output
  • · Replies 4 ·
Replies
4
Views
2K
High School Sine Wave: Definition, Examples & Graphs
  • · Replies 5 ·
Replies
5
Views
3K
High School What are the differences between natural, rational, whole, and integer numbers?
  • · Replies 15 ·
Replies
15
Views
3K
High School What Math and Physics Topics Are Covered in A Level Courses in America?
  • · Replies 8 ·
Replies
8
Views
7K
Undergrad Explanation for the uneducated mind
  • · Replies 3 ·
Replies
3
Views
2K
High School Solving Exponential Equations Using Logarithms
  • · Replies 10 ·
Replies
10
Views
14K
Undergrad Solving Timetable Problems in Brunei Schools
  • · Replies 2 ·
Replies
2
Views
8K
High School Two Fathers, Two Sons, One Unexpected Lesson: How Rs15,000 Grew to Rs25,000
  • · Replies 4 ·
Replies
4
Views
3K
High School What Is the Secret Word and How Does It Determine the Number of Vowels?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Is There a Purely Mathematical Solution to the Equation 5^x + 9^x = 92?
  • · Replies 8 ·
Replies
8
Views
3K
High School How Do I Correctly Rearrange Formulas Involving Pi and Exponents?
  • · Replies 2 ·
Replies
2
Views
4K
What Makes Eccentric Geniuses Like Joseph Fourier and Paul Erdős Fascinating?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Largest number possible containing any of 9 of 10 digits
  • · Replies 5 ·
Replies
5
Views
3K
High School How Do I Solve for h2 in This Equation?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad How Can You Solve a Geometric Sequence Problem in a Telephoning Tree?
  • · Replies 1 ·
Replies
1
Views
7K
High School Math in MP3 and other music compression
  • · Replies 3 ·
Replies
3
Views
3K
High School How do you find the sum of the digits of number N? Say N = 10
  • · Replies 6 ·
Replies
6
Views
3K
High School Solving a Word Problem: Rancher Dividing Livestock
  • · Replies 1 ·
Replies
1
Views
3K
Graduate How Many Transitional States Exist in an Element with n Sub-Elements?
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Question concerning math in relation to nature
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Analytical Ability P2
  • · Replies 1 ·
Replies
1
Views
3K
High School Why Are Roman Numerals Used in Labeling Cartesian Sections?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Solve the Last Big Question on Degrees: Sin(45ds+x)+cos(45ds+x)=sqrt2cosx
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Analyzing X^Y+Y^X=100: How to Solve Integer Equation
  • · Replies 5 ·
Replies
5
Views
6K
Graduate SoulWhat is the fundamental model of CIS according to Complementary Logic?
  • · Replies 25 ·
Replies
25
Views
5K