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

Undergrad Help with three-statement logic problem

  • hayden_kee
  • · Replies 3 ·
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3

How to type Maths Equation in Blog

  • Harmony
  • · Replies 9 ·
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9

Graduate Interesting Finding: Solving f(a_0, n_0) for All Integers m

  • Werg22
  • · Replies 9 ·
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9

High School Is 1+1 a Provable Concept in Mathematics?

  • lewis198
  • · Replies 12 ·
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12

Undergrad Solving an annoying equation

  • MexWave
  • · Replies 2 ·
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2

Undergrad Need advice on Numerical Methods Book

  • tomcenjerrym
  • · Replies 2 ·
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2

High School Absolute Value Equations: Setting Restrictions

  • vertciel
  • · Replies 2 ·
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2

Undergrad Recursive formula for Bernoulli numbers

  • yasiru89
  • · Replies 2 ·
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2

Undergrad Creating a Fisheye Effect with FreeHand/Illustrator

  • abeall
  • · Replies 1 ·
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1

Undergrad Parametrizing an ellipse - what am I doing wrong?

  • abeall
  • · Replies 4 ·
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4

Graduate Solving x+y+z=2 and 2^{x+y^2}+2^{y+z^2}+2^{z+x^2}=6\sqrt[9]{2} in R

  • santa
  • · Replies 17 ·
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17

Undergrad How Can We Prove Quadrilateral Similarity Through Circle Intersections?

  • SonyDvDPro
  • · Replies 2 ·
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2

Graduate Sum of Tangents Squared of Odd Angles

  • santa
  • · Replies 16 ·
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16

High School How to Solve Inequalities with Absolute Value and Fractions?

  • SengNee
  • · Replies 5 ·
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5

Undergrad Why are there three forms of the double-angle formula for cos 2θ?

  • danglade
  • · Replies 3 ·
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3

What is the solution to the Dogsmead puzzle?

  • scupydog
  • · Replies 6 ·
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6

Can Games Stimulate the Brain Like Mathematics?

  • Daniel Y.
  • · Replies 3 ·
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3

Apology for Lameness: How to Make Amends

  • Dmrwizkidz
  • · Replies 4 ·
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4

High School Is there a mathematical symbol for expressing one function in terms of another?

  • nanoWatt
  • · Replies 4 ·
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4

Undergrad Finding point D on circle C where AD is a diameter

  • david18
  • · Replies 6 ·
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6

High School Is \sqrt{59.29} a perfect square?Perfect Square: Whole vs Decimals

  • Holocene
  • · Replies 6 ·
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6

Graduate Prove √(2+√3)+√(4-√7)=√(5+√21)

  • santa
  • · Replies 16 ·
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16

Graduate How can we prove that A', B', and C' are collinear in triangle ABC?

  • SonyDvDPro
  • · Replies 1 ·
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1

High School Definition of a radical number

  • Hayker
  • · Replies 1 ·
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1

High School Lecture notes regarding integers ?

  • garyljc
  • · Replies 11 ·
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11

Undergrad Finding Relations for Coefficients of Polynomial p(x)=0 to Get Real Roots

  • Kadmax
  • · Replies 2 ·
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2

Undergrad Finding the domain of the square root of a polynomial

  • sadhu
  • · Replies 2 ·
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2

Undergrad How can I determine a parabola given two points?

  • dtl42
  • · Replies 2 ·
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2

High School Quadratic Formula: Positive or Negative Root?

  • Holocene
  • · Replies 7 ·
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7

Undergrad Solving for A in (C/(.5(2^.5+1)(A^-1-B)+2.5^-1))^-1=(18A-F)^-1(14A-F/V)

  • Jeff Cook
  • · Replies 9 ·
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9

Undergrad Foodie equation for rating food value for money

  • Oerg
  • · Replies 11 ·
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11

Undergrad Finding the Exact Values of sinx and cosx in Trigonometric Equations

  • glass.shards
  • · Replies 2 ·
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2

High School Factoring f(x)=x^3+x to Find x-Axis Intersection

  • david18
  • · Replies 4 ·
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4

Undergrad Solving Sin(A)=Sin(B): Where did the 2nd Solution Go?

  • C_Ovidiu
  • · Replies 6 ·
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6

Undergrad How Can You Solve for Non-Integral Solutions of the Greatest Integer Function?

  • sadhu
  • · Replies 4 ·
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4

High School How does (y^2 + 8)^2 - (6y)^2 come from factoring (y^2 + 8)^2 - 36y^2?

  • nanoWatt
  • · Replies 6 ·
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6

High School What are some helpful factoring formulas to use for polynomials?

  • nanoWatt
  • · Replies 4 ·
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4

US borrows Singaporean mathemics books for kids study

  • Quittor
  • · Replies 3 ·
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3

High School Cover a 12m × 9m bedroom with two carpets and one cut

  • XOS123
  • · Replies 11 ·
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11

Undergrad Solving a max() Function with Binary Operators

  • Barking_Mad
  • · Replies 5 ·
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5
  • Poll Poll

Graduate Thinking time vs. Writing Time

  • andytoh
  • · Replies 1 ·
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1

High School Linear Inequalities: Error in book?

  • Holocene
  • · Replies 3 ·
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3

Undergrad How do you find the inverse of a function with a floor function?

  • lewis198
  • · Replies 7 ·
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7

Undergrad Have any major conceptual errors been found in math journals?

  • andytoh
  • · Replies 12 ·
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12

Klein bottles for sale at kleinbottle.com

  • mbrmbrg
  • · Replies 2 ·
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2

High School Determine if 3 points form a right angle

  • abeall
  • · Replies 24 ·
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24

Undergrad Proof for operations algorithms

  • C0nfused
  • · Replies 7 ·
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7

Undergrad Question on the history of math - Fourier

  • quasar987
  • · Replies 5 ·
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5

High School Textbooks and materials on mathematics in the fine arts

  • Quantumduck
  • · Replies 20 ·
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20

Undergrad Calculating Force for Elevated Projectile Motion

  • SilverVenom
  • · Replies 21 ·
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21

Tools to draw shapes and graphs and label them

  • rocomath
  • · Replies 2 ·
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2

Graduate Real World Tesseract: Crafting a 4D Table from 3D Cubes

  • DaveC426913
  • · Replies 7 ·
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7

Graduate How Do You Solve the Sonar Range Equation Using the Lambert W Function?

  • zibifnik
  • · Replies 2 ·
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2

Undergrad How'd they figure that? (logic puzzle)

  • belliott4488
  • · Replies 70 ·
3
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70

High School How do you know which factor to use?

  • Holocene
  • · Replies 7 ·
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7

High School Can You Solve the Four Nines Puzzle?

  • ACG
  • · Replies 46 ·
2
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46

High School What number completes the sequence?

  • Zetep
  • · Replies 3 ·
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3

High School Is 10 to the power of 3 equal to 1,000 or 10,000?

  • Mr_Bojingles
  • · Replies 8 ·
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8

Graduate What are the Primary Topics in Graph Theory for an Interactive Teaching Module?

  • nteph
  • · Replies 3 ·
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3

High School What is the influence of complex numbers on the equation 1+1=2?

  • Oerg
  • · Replies 18 ·
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18
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1

High School Is the Minus Sign Separating Terms or Part of the Term in Algebra?

  • Holocene
  • · Replies 4 ·
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4

High School Reducing Radicals in Exams: Is it True?

  • Holocene
  • · Replies 2 ·
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2

Graduate Solve 25 Horse Riddle: Find 3 Fastest in Minimal Races

  • daniel_i_l
  • · Replies 5 ·
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5

High School Why does dividing by smaller numbers give bigger results, and what about dividing by zero?

  • Arkarian
  • · Replies 5 ·
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5

By definition, is a unit considered an irreducible?

  • Werg22
  • · Replies 8 ·
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8

High School Working out the intercept of the Y-Axis

  • Dearster
  • · Replies 2 ·
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2

Graduate What's the maths equivalent of the Feynman Lectures?

  • Puffin
  • · Replies 19 ·
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19

Undergrad What is the Trigonometric Relationship Between Chord Length and Angle at Centre?

  • Jungy
  • · Replies 20 ·
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20

Graduate Can This Conjecture Predict Prime Numbers?

  • approx
  • · Replies 30 ·
2
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30

Graduate Are Subalgebras Merely Specific Submatrices in Lisi's ESToE?

  • Ivan Seeking
  • · Replies 4 ·
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4

Undergrad Fitting quadratic curve to three constraints

  • Bob Smith
  • · Replies 6 ·
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6

Graduate Distance and Azimuth Calculation

  • marlan_msr
  • · Replies 5 ·
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5

Undergrad Can Arctan(11/2) Be Expressed in Terms of Pi?

  • rbzima
  • · Replies 1 ·
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1

High School How would i rearange A=2 pi r(r+h) to make h the subject?

  • madmike159
  • · Replies 3 ·
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3

High School Do you get overwhelmed by memorizing so many formulas?

  • Holocene
  • · Replies 10 ·
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10

High School Proof of Parallelogram Theorem: 2 Pairs of Opposite Angles Congruent

  • macaholic
  • · Replies 2 ·
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2

High School Solving Fraction Addition: Understanding Common Denominators

  • Holocene
  • · Replies 5 ·
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5

High School Graphs in Mathematics: 3D Directed Graphs

  • jefges
  • · Replies 1 ·
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1

Undergrad How can I use least squares to find coefficients for a cubic polynomial?

  • ianripping
  • · Replies 22 ·
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22

Recommendations for a comprehensive mathematics dictionary

  • princeton118
  • · Replies 5 ·
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5

High School I don't know how to calculate a tennis racquet head size thanks

  • YKD
  • · Replies 6 ·
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6

Undergrad How to calculate Angle between vectors

  • IMK
  • · Replies 4 ·
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4

Graduate Course of Action beyond Calculus

  • homeomorphism
  • · Replies 16 ·
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16

Undergrad Ugh Challenge of learning math when it comes too easy.

  • The_Z_Factor
  • · Replies 17 ·
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17

High School Mathematical Reasons Why You Cannot Divide by 0

  • asd1249jf
  • · Replies 23 ·
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23

Graduate Can powers of 2 and 3 generate all numbers not divisible by 2 or 3?

  • approx
  • · Replies 27 ·
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27

High School Simple math rules seem contradictory

  • Holocene
  • · Replies 6 ·
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6

High School Which 3D Rotation Calculation is Correct?

  • IMK
  • · Replies 5 ·
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5

Graduate Did anyone here take the Putnam exam this weekend?

  • Xevarion
  • · Replies 18 ·
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18

Graduate How Did Others Fare in the Putnam Exam Yesterday?

  • Doom of Doom
  • · Replies 5 ·
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5

Graduate What should authors do when they realize their published idea is flawed?

  • Count Iblis
  • · Replies 5 ·
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5

High School How do I simplify this algebraic expression with a brain fart?

  • cotufa
  • · Replies 2 ·
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2

High School Puzzle - can a six 3's can make 31?

  • Carribeanking
  • · Replies 1 ·
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1

Where Can I Find the Most Amazing Math Posters Online?

  • teleport
  • · Replies 6 ·
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6

High School In a graph, what is the origin of the abscissa?

  • gcatal
  • · Replies 1 ·
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1

Undergrad Roots of Trigonometric polynomials?

  • wk1989
  • · Replies 3 ·
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3

High School Solve this two equations with two unkown of different degrees

  • racer
  • · Replies 10 ·
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10

High School Factoring difference of sixth powers: why not cube the base?

  • Holocene
  • · Replies 4 ·
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4

Undergrad Finding power sums of polynomial roots from coefficients

  • rock.freak667
  • · Replies 12 ·
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12