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General Math Forum

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

Sep 4, 2025

Math Guides, Tutorials and Articles

MHB Deriving the first and second order Newton-Cotes formulas

Aug 30, 2022

Math Problem of the Week

Undergrad Sum of an Alternating Series

Mar 28, 2025

Filters

Solving Closest Values of x to Zero: Formula to Make it Easy

Oct 25, 2004 · Replies 3 · Oct 25, 2004

Replies: 3

Views: 2K

Is the Square Root of 0 Undefined?

Oct 24, 2004 · Replies 14 · Oct 25, 2004

Replies: 14

Views: 43K

What is the real part of a function like f(z)= √(z)?

Oct 24, 2004 · Replies 7 · Oct 25, 2004

Replies: 7

Views: 13K

Solving Complex Equation: z^4 + 1/2(1 - i3^(1/2)) = 0

Oct 24, 2004 · Replies 3 · Oct 24, 2004

Replies: 3

Views: 2K

Quadratic Equation Straight Line

Oct 24, 2004 · Replies 6 · Oct 24, 2004

Replies: 6

Views: 7K

Is There an Easier Way to Understand Polynomial Inequalities?

Oct 22, 2004 · Replies 4 · Oct 24, 2004

Replies: 4

Views: 2K

Why Do Some Mathematicians Struggle with Basic Math?

Oct 17, 2004 · Replies 59 · Oct 23, 2004

2

Replies: 59

Views: 8K

Solve the simultaneous equations

Oct 23, 2004 · Replies 21 · Oct 23, 2004

Replies: 21

Views: 3K

How Can Two Equations Have Multiple Points of Intersection?

Oct 23, 2004 · Replies 1 · Oct 23, 2004

Replies: 1

Views: 2K

Solving Quadratic Equations: (-2,5), (2.5,18.5) Answers Explained

Oct 23, 2004 · Replies 5 · Oct 23, 2004

Replies: 5

Views: 2K

Solving a Basic Trigonometry Doubt: Where to Learn?

Oct 22, 2004 · Replies 3 · Oct 22, 2004

Replies: 3

Views: 3K

Why do we equal equations to 0 (zero)?

Oct 20, 2004 · Replies 6 · Oct 22, 2004

Replies: 6

Views: 3K

What is the solution to this equation involving cats, dogs, and lambs?

Oct 22, 2004 · Replies 4 · Oct 22, 2004

Replies: 4

Views: 2K

Troubleshooting Vector Equations: Proving Collinearity of 3 Concurrent Lines

Oct 22, 2004 · Replies 1 · Oct 22, 2004

Replies: 1

Views: 2K

Understanding Fourier Series Basics

Oct 21, 2004 · Replies 4 · Oct 22, 2004

Replies: 4

Views: 6K

What Is the General Formula for Summing Series with r^2 and r^3 Terms?

Oct 19, 2004 · Replies 15 · Oct 22, 2004

Replies: 15

Views: 2K

Can Nonlinear Trajectories Lead to Linear Equilibrium?

Oct 17, 2004 · Replies 19 · Oct 21, 2004

Replies: 19

Views: 3K

Algebra Story Problem: Big and Little Jesse's Walking Challenge

Oct 16, 2004 · Replies 13 · Oct 21, 2004

Replies: 13

Views: 2K

Vector Division: Is It Possible?

Oct 21, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 6K

What is the solution to the infinite lamp game?

Oct 19, 2004 · Replies 9 · Oct 21, 2004

Replies: 9

Views: 4K

How Can I Isolate the Variable K in a Math Equation?

Oct 20, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 6K

Identifying a Counterfeit Coin Using a Simple Balance: A Mathematical Challenge

Oct 20, 2004 · Replies 6 · Oct 20, 2004

Replies: 6

Views: 3K

What is the solution to the Maths Olympiad problem involving sine?

Oct 19, 2004 · Replies 16 · Oct 20, 2004

Replies: 16

Views: 8K

Show it without using induction?

Oct 18, 2004 · Replies 8 · Oct 20, 2004

Replies: 8

Views: 2K

Why Does Multiplication of Negative Numbers Yield Positive Results?

Oct 19, 2004 · Replies 7 · Oct 20, 2004

Replies: 7

Views: 4K

How Do You Complete the Square for x^2 + 3x + 4?

Oct 19, 2004 · Replies 6 · Oct 19, 2004

Replies: 6

Views: 2K

What is the radius of the table?

Oct 19, 2004 · Replies 1 · Oct 19, 2004

Replies: 1

Views: 2K

Is Dirac Notation Appropriate for Proving Hermitian Conjugates of Operators?

Oct 19, 2004 · Replies 2 · Oct 19, 2004

Replies: 2

Views: 4K

Solve Logarithm Equation 7^2x - 5*7^x - 24 =0

Oct 18, 2004 · Replies 3 · Oct 19, 2004

Replies: 3

Views: 3K

Maximizing Your Score on the SAT Math Section

Oct 12, 2004 · Replies 8 · Oct 18, 2004

Replies: 8

Views: 3K

Solving the Puzzle: Cow Rope Length in Round Meadow

Oct 14, 2004 · Replies 7 · Oct 18, 2004

Replies: 7

Views: 3K

Statistics Problem: Sampling Distributions - Somewhat OT

Oct 16, 2004 · Replies 1 · Oct 18, 2004

Replies: 1

Views: 2K

Is 0.9~ equal to 1 in mathematical calculations?

Oct 14, 2004 · Replies 12 · Oct 17, 2004

Replies: 12

Views: 3K

How do I find the values of A, B, and C in a polynomial with the given factors?

Oct 16, 2004 · Replies 15 · Oct 17, 2004

Replies: 15

Views: 3K

Using e^ix to determine a trig identity

Oct 17, 2004 · Replies 2 · Oct 17, 2004

Replies: 2

Views: 3K

Exploring the Possibility Pyramid: A Simple Model for Understanding Probability

Oct 16, 2004 · Replies 4 · Oct 17, 2004

Replies: 4

Views: 2K

William Lowell Putnam Competition

Oct 16, 2004 · Replies 6 · Oct 17, 2004

Replies: 6

Views: 3K

Uncertainties and significant figures

Oct 16, 2004 · Replies 2 · Oct 16, 2004

Replies: 2

Views: 2K

What is the required speed to average 60 MPH for a car trip with varying speeds?

Oct 5, 2004 · Replies 7 · Oct 16, 2004

Replies: 7

Views: 6K

What is the purpose of imaginary numbers and how do they work?

Sep 18, 2004 · Replies 60 · Oct 16, 2004

3

Replies: 60

Views: 8K

New Number System Allows Pi to be Exact

Oct 15, 2004 · Replies 4 · Oct 16, 2004

Replies: 4

Views: 3K

Slicing dice and cutting corners

Oct 12, 2004 · Replies 2 · Oct 16, 2004

Replies: 2

Views: 2K

What is the curious relationship between exponential and logarithmic functions?

Oct 16, 2004 · Replies 3 · Oct 16, 2004

Replies: 3

Views: 2K

Should You Share Your Revolutionary Science Theory Online?

Oct 15, 2004 · Replies 3 · Oct 16, 2004

Replies: 3

Views: 2K

Math courses for next semester.

Oct 15, 2004 · Replies 2 · Oct 15, 2004

Replies: 2

Views: 3K

Numbers with Non-Decreasing Digits

Oct 10, 2004 · Replies 32 · Oct 15, 2004

2

Replies: 32

Views: 8K

Lucas-Lehmer Test for Mersenne Primes

Oct 13, 2004 · Replies 6 · Oct 15, 2004

Replies: 6

Views: 3K

How Are Logarithms Applied in Physics?

Oct 13, 2004 · Replies 3 · Oct 15, 2004

Replies: 3

Views: 2K

How can I simplify this equation and see the connection between #5 and #7?

Oct 15, 2004 · Replies 7 · Oct 15, 2004

Replies: 7

Views: 2K

Mastering Math Identities: Clear and Comprehensive Guide for AS Level Students

Oct 11, 2004 · Replies 24 · Oct 15, 2004

Replies: 24

Views: 4K

Solving for f in f(f(x)) = 2x^2 - 1

Oct 13, 2004 · Replies 18 · Oct 14, 2004

Replies: 18

Views: 4K

REALLY NEED HELP Solving for X with radicals/square roots

Oct 13, 2004 · Replies 10 · Oct 14, 2004

Replies: 10

Views: 4K

Proof by Induction and divisibility

Mar 23, 2004 · Replies 6 · Oct 14, 2004

Replies: 6

Views: 6K

What is a problem that would have been hard to solve without a slide rule?

Oct 13, 2004 · Replies 1 · Oct 13, 2004

Replies: 1

Views: 2K

Explain vectors from begining to end

Oct 11, 2004 · Replies 7 · Oct 13, 2004

Replies: 7

Views: 2K

Solve Fraction Expansion: Find A & B

Oct 13, 2004 · Replies 1 · Oct 13, 2004

Replies: 1

Views: 2K

How can I stay motivated to learn math?

Oct 11, 2004 · Replies 16 · Oct 13, 2004

Replies: 16

Views: 6K

Proving Area Equality of Parallelograms ABCD & AXYZ

Oct 11, 2004 · Replies 6 · Oct 13, 2004

Replies: 6

Views: 2K

All n-variable combinations can exist within a word

Aug 28, 2004 · Replies 21 · Oct 13, 2004

Replies: 21

Views: 3K

Help Factorise an equation with fraction index?

Oct 12, 2004 · Replies 2 · Oct 12, 2004

Replies: 2

Views: 6K

What Are the Physical Implications of Complex Numbers in Quantum Mechanics?

Sep 17, 2004 · Replies 20 · Oct 12, 2004

Replies: 20

Views: 4K

Proof of 10^(3^4) = 100 Googol Googols

Oct 12, 2004 · Replies 5 · Oct 12, 2004

Replies: 5

Views: 2K

Is My Approach to Simplifying Complex Fractions Correct?

Oct 7, 2004 · Replies 19 · Oct 12, 2004

Replies: 19

Views: 3K

Can a Probability Be Greater Than 1 in Statistics?

Oct 12, 2004 · Replies 7 · Oct 12, 2004

Replies: 7

Views: 2K

I need some help with these two calculator trig problems

Oct 10, 2004 · Replies 8 · Oct 12, 2004

Replies: 8

Views: 3K

The Mysterious Math of Chess: Probabilities and Possibilities

Oct 10, 2004 · Replies 8 · Oct 12, 2004

Replies: 8

Views: 8K

Question:How can I solve the complex equation z^4-2z^2+4=0?

Oct 11, 2004 · Replies 5 · Oct 11, 2004

Replies: 5

Views: 3K

What Are Some Free Alternatives to GraphCalc for Advanced Graph Plotting?

Oct 11, 2004 · Replies 1 · Oct 11, 2004

Replies: 1

Views: 8K

Geometry and Discrete Math Links

Oct 9, 2004 · Replies 6 · Oct 11, 2004

Replies: 6

Views: 3K

What is the height of the chimney?

Oct 9, 2004 · Replies 7 · Oct 10, 2004

Replies: 7

Views: 2K

How Do Changes in a, b, and c Values Affect the Graph of a Quadratic Equation?

Oct 8, 2004 · Replies 6 · Oct 10, 2004

Replies: 6

Views: 11K

Equation of the line joining A(-1, 9) to B(6, 12)

Oct 10, 2004 · Replies 2 · Oct 10, 2004

Replies: 2

Views: 2K

What resources does NIU offer for mathematics?

Oct 9, 2004 · Replies 3 · Oct 10, 2004

Replies: 3

Views: 3K

Vector valued and scalar valued functions

Oct 10, 2004 · Replies 2 · Oct 10, 2004

Replies: 2

Views: 15K

How many pairs of positive integer a, b

Oct 9, 2004 · Replies 12 · Oct 10, 2004

Replies: 12

Views: 2K

Help with solving a polynomial

Oct 9, 2004 · Replies 5 · Oct 10, 2004

Replies: 5

Views: 2K

Why Can't I Solve These Seemingly Simple Math Problems?

Oct 8, 2004 · Replies 2 · Oct 9, 2004

Replies: 2

Views: 2K

Understanding the Cosine Formula for Vector Multiplication in 3D Space

Oct 7, 2004 · Replies 5 · Oct 9, 2004

Replies: 5

Views: 2K

Rotating a Vector [x0,y0,z0] in an XYZ Frame

Oct 9, 2004 · Replies 1 · Oct 9, 2004

Replies: 1

Views: 3K

A Drunkard's Walk: Proving Positive Average Displacement

Oct 4, 2004 · Replies 21 · Oct 8, 2004

Replies: 21

Views: 5K

Solving a Geometry Problem: Area of a Circle with a Wedge

Oct 8, 2004 · Replies 2 · Oct 8, 2004

Replies: 2

Views: 3K

Solve Polynomial Equation for Real a

Oct 7, 2004 · Replies 1 · Oct 8, 2004

Replies: 1

Views: 2K

Linear Equation: Definition & Meaning

Oct 7, 2004 · Replies 3 · Oct 8, 2004

Replies: 3

Views: 2K

Find all positive integers c such that it is possible to write c = a/b + b/a

Oct 7, 2004 · Replies 2 · Oct 7, 2004

Replies: 2

Views: 2K

Solve X-(S+P-C)E^RT+D*E^RT=0 and Isolate C

Oct 6, 2004 · Replies 11 · Oct 7, 2004

Replies: 11

Views: 2K

Calculate what number x needs to be, to make y 0 ?

Oct 1, 2004 · Replies 15 · Oct 7, 2004

Replies: 15

Views: 2K

Solve x^2+7x>6+2x^3: Tips & Solutions

Oct 3, 2004 · Replies 5 · Oct 6, 2004

Replies: 5

Views: 2K

Independent study on Logarithms

Oct 4, 2004 · Replies 5 · Oct 5, 2004

Replies: 5

Views: 2K

What is the significance of the repeating pattern in a circle of numbers?

Oct 5, 2004 · Replies 2 · Oct 5, 2004

Replies: 2

Views: 2K

Distance in hyperbolic geometry

Oct 5, 2004 · Replies 2 · Oct 5, 2004

Replies: 2

Views: 4K

What is the relationship between complex numbers and conjugates?

Sep 30, 2004 · Replies 25 · Oct 5, 2004

Replies: 25

Views: 4K

Looking for table of primitives

Oct 5, 2004 · Replies 5 · Oct 5, 2004

Replies: 5

Views: 3K

If a 235 lb person falls 2 stories in an elevator

Oct 4, 2004 · Replies 4 · Oct 5, 2004

Replies: 4

Views: 3K

Solving Integral Problem with 2*e^sqrt(x)-2*e - Help Ylle

Oct 4, 2004 · Replies 3 · Oct 4, 2004

Replies: 3

Views: 2K

Solving Inequality Problem: (|a|+|b|≥2(|c|+|d|))

Oct 3, 2004 · Replies 2 · Oct 4, 2004

Replies: 2

Views: 2K

What Are the Key Concepts and Applications of Topology?

Oct 1, 2004 · Replies 20 · Oct 4, 2004

Replies: 20

Views: 5K

Solving for x: Unraveling the Rules of O(x)

Oct 2, 2004 · Replies 6 · Oct 4, 2004

Replies: 6

Views: 2K

Volume of a parallelepiped's sign

Oct 3, 2004 · Replies 3 · Oct 4, 2004

Replies: 3

Views: 3K

Solving (UN)^2=DEUX Math Problem

Oct 2, 2004 · Replies 13 · Oct 3, 2004

Replies: 13

Views: 2K

Solving the Math Teacher Dinner Puzzle: Find the Date!

Oct 3, 2004 · Replies 17 · Oct 3, 2004

Replies: 17

Views: 3K

Mathematics

Mathematics, often referred to as the language of the universe, is the systematic study of patterns, structures, and relationships using numbers, quantities, shapes, and symbols.

It is a fundamental discipline that provides tools for logical reasoning, problem-solving, and quantitative analysis. Math is divided into various branches, including algebra, geometry, calculus, statistics, and more, each serving unique purposes across diverse fields.

Whether applied in science, engineering, economics, or everyday life, mathematics offers a universal framework for understanding and modeling the intricacies of the world around us, making it an essential and foundational element of human knowledge and intellectual inquiry.

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