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.

Threads

Understanding Legendre Polynomials for Students

  • ychen47
  • · Replies 2 ·
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2

Continued Fractions: Motivation and Applications

  • matqkks
  • · Replies 10 ·
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10

Undergrad How Does McDonald's Calculate Its Weighted Average Cash for ROIIC?

  • viciam
  • · Replies 8 ·
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8

High School Solving Hexagon Area: Formula Troubles and Possible Solutions

  • shadowboy13
  • · Replies 8 ·
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8

How Can We Solve for 'a' and 'b' in This Simultaneous Equation?

  • anemone
  • · Replies 13 ·
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13

Solving Continued Proportion Problem with Componendo Dividendo

  • kuheli
  • · Replies 1 ·
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1

Solve for Rational Term: 2x^2-1 Over x^2+1

  • theakdad
  • · Replies 5 ·
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5

Why is zero both singular and plural?

  • Petrus
  • · Replies 5 ·
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5

Maximizing $z$ in Equations (1) and (2)

  • Albert1
  • · Replies 2 ·
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2

EMF in Electric Guitars: Tutorial & Formulae

  • Alelin
  • · Replies 1 ·
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1

High School Dividing cancels out a solution?

  • ainster31
  • · Replies 6 ·
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6

Undergrad What is the Correct Method to Solve this Trigonometry Problem?

  • Gurdian
  • · Replies 2 ·
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2
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4

Undergrad Solution to polynomial of unknown degree

  • Jhenrique
  • · Replies 11 ·
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11

Find the number of integers "k"

  • anemone
  • · Replies 9 ·
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9

Challenge: Create 64 with two 4's

  • soroban
  • · Replies 5 ·
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5
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1

Backing material - useful tools at eeweb.com

  • Jhenrique
  • · Replies 2 ·
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2

First Grade Math: Unconventional Solutions?

  • TheOldHag
  • · Replies 7 ·
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7
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5

Graduate Challenge 9: The Prisoner Line-Up

  • Office_Shredder
  • · Replies 8 ·
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8

Last Three Digits of Complex Number Sum and Product Equations

  • anemone
  • · Replies 4 ·
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4

Can 20(s - t) Be an Integer in a Quartic Equation with No Real Roots?

  • anemone
  • · Replies 3 ·
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3

Inequality Challenge: Show $7x+12xy+5y \le 9$

  • anemone
  • · Replies 3 ·
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3

Generating function of bessel function

  • alyafey22
  • · Replies 2 ·
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2

Undergrad Math majors that suck at physics?

  • Catria
  • · Replies 30 ·
2
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30

High School Can n be negative? What values of n allow for negative numbers?

  • gikiian
  • · Replies 3 ·
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3

Graduate How Can I Apply a Quaternion Rotation on a Local Axis After an Initial Rotation?

  • Registred
  • · Replies 1 ·
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1

Graduate Modified least squares fitting?

  • nmf77
  • · Replies 2 ·
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2

Graduate Is it really true that, for any n > 0 , there is a prime between 2 ^ n

  • goldust
  • · Replies 30 ·
2
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30

Trigonometric equation: 2cos(θ) + 2sin(θ) = √(6)

  • karush
  • · Replies 7 ·
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7

Unknown_12's questions at Yahoo Answers regarding analytic geometry

  • MarkFL
  • · Replies 7 ·
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7

High School Function concept and equation concept

  • thedy
  • · Replies 27 ·
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27

High School I need a proof that -1 DOES NOT equal 1

  • anis91
  • · Replies 13 ·
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13

Algebraic Expressions Simplified

  • loraboiago
  • · Replies 4 ·
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4

High School Help understanding metric units

  • tomtomtom1
  • · Replies 1 ·
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1

How can I express this trigonometric equation using cosine of 3x?

  • anemone
  • · Replies 6 ·
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6

What is the Role of Jordan Exchange in the Simplex Method?

  • mathmari
  • · Replies 1 ·
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1

A logical sequence: 1 - 1 - 3 - 6 - 18 - ?

  • lfdahl
  • · Replies 9 ·
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9

Undergrad Continued Fractions: Motivation & Real Life Applications

  • matqkks
  • · Replies 2 ·
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2

How many weights of each type are needed at a gym to total 3180 pounds?

  • bergausstein
  • · Replies 1 ·
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1

What is the sum of real roots for $q^4-7q^3+14q^2-14q+4=0$?

  • anemone
  • · Replies 7 ·
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7

Another word problem involving a linear system.

  • paulmdrdo1
  • · Replies 8 ·
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8

Graduate Will P Ever Equal NP as Technology Advances?

  • faddishworm
  • · Replies 5 ·
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5

Find Largest a in Polynomial Factorization

  • anemone
  • · Replies 4 ·
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4

Undergrad Proving that \sqrt{p} is irrational

  • Mandelbroth
  • · Replies 5 ·
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5
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3

Graduate Some questions about what math ##is## in general

  • STEMucator
  • · Replies 18 ·
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18

Graduate Approximating Arctangent and Natural Log

  • Zeda
  • · Replies 4 ·
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4

Undergrad What is the Arrow chasing a soldier paradox and can anyone explain it?

  • adjacent
  • · Replies 22 ·
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22

Undergrad What are some good shortcuts for undergrad-level math and below?

  • ainster31
  • · Replies 1 ·
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1

No problem, glad I could contribute! Have a great day :)

  • anemone
  • · Replies 5 ·
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5

High School I don't understand how this equation calculates angle for hexagons

  • poetryrocksalo
  • · Replies 2 ·
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2

View Attachment to Understanding Taxes

  • anil86
  • · Replies 3 ·
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3

Undergrad Jay's question at Yahoo Answers regarding a proof by mathematical induction

  • MarkFL
  • · Replies 1 ·
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1

Cot(θ) = tan(2θ - 3π) find 0 < θ < 2π

  • karush
  • · Replies 4 ·
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4

Graduate How can a degenerate gambler escape his eternal punishment in hell?

  • Office_Shredder
  • · Replies 22 ·
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22

Express the value in a single fraction

  • anemone
  • · Replies 3 ·
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3
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7

How can exponent rules be solved without deleting the question?

  • Nikitin
  • · Replies 3 ·
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3

Proving the Congruence of Primes of the Form x² + 5y² (mod 20)

  • Shobhit
  • · Replies 7 ·
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7

Writing equation from a description

  • Joystar77
  • · Replies 1 ·
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1

High School Manually calculate Arccosine and Arctangent

  • Philosophaie
  • · Replies 5 ·
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5

Working with numbers and variables

  • schroedingercat
  • · Replies 3 ·
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3

High School Word problems: mathematical descriptions of stated quantities

  • paulmdrdo1
  • · Replies 1 ·
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1

High School Translate into mathematical form

  • bergausstein
  • · Replies 16 ·
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16

How many bills of each type are there in a wallet with $\$460$?

  • bergausstein
  • · Replies 4 ·
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4

Prove Statement: View Attachment

  • anil86
  • · Replies 1 ·
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1

Last 6 Digits of 7^10000: 000001

  • kaliprasad
  • · Replies 5 ·
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5

Undergrad Finding the period of a sinusoid

  • tade
  • · Replies 7 ·
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7

Undergrad Linear Logrithmic voltage to Frequency

  • MM2758
  • · Replies 7 ·
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7

Graduate Some insights about the Riemann hypothesis needed

  • goldust
  • · Replies 23 ·
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23

Graduate Can an Immortal Snail Ever Reach the End of a Stretching Rubber Band?

  • Office_Shredder
  • · Replies 3 ·
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3

Graduate Volume of n-dimensional sphere

  • Superposed_Cat
  • · Replies 5 ·
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5

Undergrad Can we find each curve/plane a corresponding function

  • whybeing
  • · Replies 9 ·
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9

Undergrad What is the notation of an inverse gradient?

  • ainster31
  • · Replies 7 ·
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7

What Are the Possible Values of k Given Specific Conditions?

  • Albert1
  • · Replies 3 ·
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3

High School Why is the Factorial of Zero Defined as One?

  • ananthu017
  • · Replies 4 ·
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4

Solve Exponential Equation: 2+√2^x + 2-√2^x =4

  • Chipset3600
  • · Replies 1 ·
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1

Understanding how to do money problems?

  • sparater
  • · Replies 5 ·
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5

Convert r = 5sin(2θ) to rectangular coordinates

  • karush
  • · Replies 3 ·
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3

Graduate Wish to solve exponential congruence equation

  • jackmell
  • · Replies 5 ·
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5

Is There a Larger Interval Where \(k^2 + k + n\) Generates Only Primes?

  • mathbalarka
  • · Replies 1 ·
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1

Inverse of the function and find if is surjective/injective

  • theakdad
  • · Replies 18 ·
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18

Verify Algebraic Statement for Philosophy of Time Essay

  • musickps
  • · Replies 2 ·
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2

Graduate Graph Amplitude and Phase of x(n) and x(t)

  • cutesteph
  • · Replies 1 ·
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1

HUGGIE BUGGIE's question at Yahoo Answers regarding calculating a sum

  • MarkFL
  • · Replies 1 ·
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1

Clock Word Problem: Solve in 2 Steps w/ Hints

  • paulmdrdo1
  • · Replies 11 ·
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11

Undergrad Coefficients of trinomial theorem

  • Jhenrique
  • · Replies 2 ·
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2

Evaluate 80t - 20s + 60r - 50q + 70p

  • anemone
  • · Replies 2 ·
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2

What are the last four digits of a_{2012}?

  • anemone
  • · Replies 8 ·
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8

Is the shorter solution the smarter solution?

  • anemone
  • · Replies 20 ·
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20

Find the radius of the small circle O_2

  • Albert1
  • · Replies 4 ·
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4

Undergrad How to rotate Cartesian coordinate system?

  • leoleo2
  • · Replies 9 ·
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9

High School How to Solve Simultaneous Equations Involving λ and m?

  • GreenTea09
  • · Replies 2 ·
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2

Manipulating Exponents to Simplify Fractional Expressions

  • Silvanoshei
  • · Replies 8 ·
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8

Undergrad Anything than can happen, will happen, given enough time

  • MathJakob
  • · Replies 9 ·
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9

Algebra word problem: the angle between the hands of a clock

  • bergausstein
  • · Replies 1 ·
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1

Solving for a+b+c in $\triangle ABC$

  • Albert1
  • · Replies 1 ·
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1

Graduate How to solve this functional (recurrence) equation ?

  • jk22
  • · Replies 3 ·
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3