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 Can Parabolas Transform into Ellipses?
  • · Replies 9 ·
Replies
9
Views
3K
MHB Answer Sequence: 15+30+60+120+240+480+960=1905
  • · Replies 1 ·
Replies
1
Views
1K
High School Rectangular Prism out of different shapes?
  • · Replies 1 ·
Replies
1
Views
1K
High School How to Solve the Equation x = log5(4x + 1)?
  • · Replies 13 ·
Replies
13
Views
2K
MHB How to change the subject when exponential is involved
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad How to prove that 2n=1 has no integer solutions
  • · Replies 6 ·
Replies
6
Views
3K
MHB From Altitudes to Angles to Sides
  • · Replies 2 ·
Replies
2
Views
2K
MHB Solution To Equation Involving Square Root: Extraneous Solution?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Desymmetrization of a combinatorial set
  • · Replies 8 ·
Replies
8
Views
2K
MHB Find Measure of ∠BAD in ABCD Rhombus
  • · Replies 3 ·
Replies
3
Views
2K
MHB Find Integer Solutions to $k=\dfrac{ab^2-1}{a^2b+1}$
  • · Replies 1 ·
Replies
1
Views
1K
MHB How Many Pairs of (x,y) Satisfy the Given Equation?
  • · Replies 2 ·
Replies
2
Views
1K
MHB What is the variation of Ifdahl's solution to finding the value(s) of $x$?
  • · Replies 3 ·
Replies
3
Views
1K
High School Function and change of frame of reference
  • · Replies 3 ·
Replies
3
Views
2K
MHB Rational function equation problem solving
  • · Replies 2 ·
Replies
2
Views
3K
High School How reliable are logarithm tables?
  • · Replies 7 ·
Replies
7
Views
3K
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
2K
High School What are the properties and equations of a 4-dimensional cube?
  • · Replies 10 ·
Replies
10
Views
7K
MHB What is the maximum and minimum sum for $|a-b|+|b-c|+|c-a|$ with given relation?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Open problems and conjectures in Mathematics
  • · Replies 2 ·
Replies
2
Views
1K
High School Understanding Planes and Tetrahedrons
  • · Replies 7 ·
Replies
7
Views
2K
MHB Can Seven Integers with a Subtraction of 3 Result in a Product 13 Times Larger?
  • · Replies 6 ·
Replies
6
Views
2K
MHB Point (a, b) Reflected About Two Lines
  • · Replies 3 ·
Replies
3
Views
2K
MHB Find x in Exponential Equation: 2^x=8x
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Newton Divided Difference Interpolation Polynomial
  • · Replies 1 ·
Replies
1
Views
4K
MHB Most Important Precalculus Topics
  • · Replies 2 ·
Replies
2
Views
3K
MHB Line Segment AB....Challenge Question
  • · Replies 12 ·
Replies
12
Views
3K
MHB Symmetry of Points Across y = x Line?
  • · Replies 4 ·
Replies
4
Views
5K
High School How many numbers can you make with four 4s?
  • · Replies 36 ·
2
Replies
36
Views
7K
MHB How can I factorize this polynomial?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Why is Precalculus such a challenging course for students?
  • · Replies 20 ·
Replies
20
Views
8K
Undergrad What is the inequality for prime numbers in the Prime Number Theorem proof?
  • · Replies 9 ·
Replies
9
Views
2K
MHB No problem, I'm here to help! Is there anything else you need clarification on?
  • · Replies 6 ·
Replies
6
Views
2K
High School How Far is Mile Start Line from Finish Line at end of Lane 8
  • · Replies 9 ·
Replies
9
Views
5K
Graduate Bonse's Inequality: Estimating Lower Bound on Prime Powers
  • · Replies 2 ·
Replies
2
Views
2K
High School Radians vs Degrees: Math Trigonometry Explained
  • · Replies 7 ·
Replies
7
Views
3K
High School The Fields of Mathematics Video
  • · Replies 2 ·
Replies
2
Views
1K
MHB Imaginary numbers and real numbers?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Is This Equation Symmetric About the Origin?
  • · Replies 2 ·
Replies
2
Views
2K
MHB What is the solution to the MathJax and Android's Chrome bug?
  • · Replies 16 ·
Replies
16
Views
3K
MHB Area of Triangle with Given Data
  • · Replies 5 ·
Replies
5
Views
3K
MHB Solve for x and y When (x+$\sqrt {x^2+1})\times (y+\sqrt {y^2+4})=7$
  • · Replies 1 ·
Replies
1
Views
1K
MHB How do I sketch the reflection of line segment AB about the line y = x?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Right Triangle and the Pythagorean Triple Formula
  • · Replies 5 ·
Replies
5
Views
2K
MHB Factoring Algebraic Expression
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Can a 3D object displace a 4D object?
  • · Replies 1 ·
Replies
1
Views
1K
MHB How to Find the Perpendicular Distance from a Point to a Line?
  • · Replies 5 ·
Replies
5
Views
2K
High School Rainman Revisited (rapid mental math)
  • · Replies 5 ·
Replies
5
Views
2K
MHB It explains the origin of the letter m in slope equations.
  • · Replies 3 ·
Replies
3
Views
3K
MHB How do I find an equation of the line with a given x-intercept and point?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate How to calculate 2D Trilateration Step by Step
  • · Replies 9 ·
Replies
9
Views
18K
Insights The Case for Learning Complex Math - Comments
  • · Replies 15 ·
Replies
15
Views
3K
MHB How Do You Find the Equation of a Line Through a Point and a Circle's Center?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Finding the Equation of a Line Given Two Points
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Can you generate an image to fit the following features?
  • · Replies 9 ·
Replies
9
Views
2K
MHB Troubleshooting: A=15-B, C=B+9, D=B+21
  • · Replies 3 ·
Replies
3
Views
2K
MHB Equation Meaning: Sigma Explained
  • · Replies 1 ·
Replies
1
Views
2K
High School How to prove this approximation?
  • · Replies 37 ·
2
Replies
37
Views
4K
MHB Calculate Area of Triangle ABC
  • · Replies 2 ·
Replies
2
Views
5K
MHB Is the perimeter of a right triangle equal to its area? (Part 2)
  • · Replies 2 ·
Replies
2
Views
2K
MHB Can Pythagoras' Theorem Prove this Right Triangle Hypotenuse Equation?
  • · Replies 2 ·
Replies
2
Views
2K
Insights Using the Fourier Series To Find Some Interesting Sums - Comments
  • · Replies 4 ·
Replies
4
Views
2K
MHB How can I verify the statement A * B = c/a for quadratic equations?
  • · Replies 6 ·
Replies
6
Views
2K
MHB Can I Graph a Semicircle By Hand?
  • · Replies 4 ·
Replies
4
Views
2K
MHB How do I use the midpoint formula to find the coordinates of point C?
  • · Replies 2 ·
Replies
2
Views
6K
MHB Which point is farther from the origin?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Geometry: why yaw, pitch, roll in that order?
  • · Replies 4 ·
Replies
4
Views
17K
MHB Equation of the Circle (Part 2)
  • · Replies 2 ·
Replies
2
Views
2K
MHB What is the equation of the circle tangent to the x-axis and with center (3, 5)?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Solving the Dilemma: Taking 2 Different Pills Every Day
  • · Replies 3 ·
Replies
3
Views
13K
MHB Math Modeling Struggles? Let's Talk!
  • · Replies 2 ·
Replies
2
Views
2K
MHB Showcase of 2016 Consecutive Numbers w/ 100 Primes
  • · Replies 1 ·
Replies
1
Views
2K
MHB How Can You Verify the Sum of Roots in a Quadratic Equation?
  • · Replies 2 ·
Replies
2
Views
2K
High School How to compute logarithm with pen and paper?
  • · Replies 10 ·
Replies
10
Views
4K
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
Graduate Collaborative Research: Resources, Tools & Protocols
  • · Replies 4 ·
Replies
4
Views
2K
MHB Parallelogram on graph problem
  • · Replies 2 ·
Replies
2
Views
3K
"Hidden Figures" movie about sane mathematicians
  • · Replies 7 ·
Replies
7
Views
3K
MHB Is it Possible to Prove this Trigonometric Inequality?
  • · Replies 2 ·
Replies
2
Views
2K
MHB Motion Problem Using F=Ma and s=ut+1/2xt^2
  • · Replies 4 ·
Replies
4
Views
4K
Graduate What's your opinion of a Math without Reals?
  • · Replies 116 ·
4
Replies
116
Views
15K
MHB What is the multiplier for finding the area of triangle ADG?
  • · Replies 4 ·
Replies
4
Views
2K
MHB What is the missing information to find the value of ‘x’?
  • · Replies 1 ·
Replies
1
Views
1K
High School Is Infinity x 0 Equal to Zero?
  • · Replies 5 ·
Replies
5
Views
8K
MHB Can you find the length of ON using Pythagoras and similarity?
  • · Replies 3 ·
Replies
3
Views
2K
Did I Actually Pass My Math Exam?
  • · Replies 4 ·
Replies
4
Views
1K
MHB Guess the Mystery Number in this List of 4!
  • · Replies 4 ·
Replies
4
Views
2K
MHB Understanding the Horizontal Shift in Logarithmic Functions
  • · Replies 1 ·
Replies
1
Views
2K
MHB Can anyone tell me the real names of these 3D shapes?
  • · Replies 9 ·
Replies
9
Views
4K
MHB Calculating the Length of an Angle Bisector: Is My Solution Correct?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Is there a happy semigroup of concatenated numbers?
  • · Replies 4 ·
Replies
4
Views
1K
High School What does a line in space look like?
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad A simple theorem we pondered in our ski lodge.... (sum of Fibonacci numbers)
  • · Replies 4 ·
Replies
4
Views
1K
MHB ACT Problem: Sum Of Even Integers
  • · Replies 2 ·
Replies
2
Views
2K
MHB Is it possible to solve such a system of equations?
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Product of functions to express any function
  • · Replies 5 ·
Replies
5
Views
2K
MHB Proving No Common Solution for Equations (1) and (2)
  • · Replies 2 ·
Replies
2
Views
1K
High School Mastering Compound Angles for Perfect Molding Installation
  • · Replies 5 ·
Replies
5
Views
2K