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

Graduate Can a Circle with Infinite Circumference Have No Gaps at Finite Distances?

  • cragar
  • · Replies 12 ·
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12

John was born in 1987, and is now (2012) 12 years old

  • Wilmer
  • · Replies 10 ·
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10

High School How do I solve for x when comparing absolute values?

  • lalapnt
  • · Replies 22 ·
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22

Muffin's GCSE Additional Maths Moments Question (from YAnswers)

  • CaptainBlack
  • · Replies 1 ·
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1

Solving 2cos(3x/10) - 3sin(x/2) = 0

  • HelpMePlease2
  • · Replies 10 ·
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10

High School Logarithms(i hope this is in the right section)

  • jimmyly
  • · Replies 13 ·
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13

Graduate Is min(1/2,x,x²) quasi-linear and why isn't it concave?

  • newphysist
  • · Replies 4 ·
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4

Solving an Equation to find the value of x

  • juantheron
  • · Replies 1 ·
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1

Simplification of Expressions with Exponents

  • thorpelizts
  • · Replies 1 ·
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1

Show Cos A = 1/12 in Square ABCD

  • Bushy
  • · Replies 2 ·
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2

Undergrad What Is the Partway Function Between x and sin(x)?

  • Dalek1099
  • · Replies 8 ·
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8

High School What is the square root of x^2?

  • tahayassen
  • · Replies 40 ·
2
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40

Graduate Are the Fourier transforms of a function and its inverse related?

  • john1989
  • · Replies 1 ·
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1

Solving a Trigonometric Equation for Cos (x)

  • melissax
  • · Replies 3 ·
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3

Looking for home educational material

  • peteb
  • · Replies 19 ·
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19

Finding the Equation of a Function.

  • vivalajuicy
  • · Replies 3 ·
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3

High School Looking for learning resources - Precalc 12

  • Sn0man
  • · Replies 5 ·
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5

1000 Students - Odd Lockers Open

  • vivalajuicy
  • · Replies 1 ·
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1

Math assignment help

  • vivalajuicy
  • · Replies 4 ·
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4

Undergrad What is the significance of .9999 equaling 1 in mathematics?

  • Psyguy22
  • · Replies 14 ·
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14

Finding the Range of a Trigonometric Function

  • melissax
  • · Replies 6 ·
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6

Which Relation Fails the Function Test?

  • melissax
  • · Replies 4 ·
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4

Maximum value of a Quadratic Equation

  • thorpelizts
  • · Replies 3 ·
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3

Odd/Even Functions: Check Symmetry over Y Axis First

  • Yankel
  • · Replies 2 ·
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2

Graduate What is THE HARDEST topic in mathematics

  • saminator910
  • · Replies 15 ·
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15

Graduate Cubic Spline Interpolation Tutorial

  • hotvette
  • · Replies 35 ·
2
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35

Undergrad Why does the graph of x^x undefined for x is less than or equal to 0?

  • tahayassen
  • · Replies 9 ·
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9

Graduate Find coordonates of a point relative to a second plane in 3D

  • dot_binary
  • · Replies 1 ·
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1

High School What are some real world applications of quadratics?

  • 5ymmetrica1
  • · Replies 5 ·
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5

Undergrad How to calculate inverse cosine of two variables

  • Wenlong
  • · Replies 2 ·
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2

Simplification of Trigonometric Expression

  • Dustinsfl
  • · Replies 5 ·
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5

Finding the Equation of a Line

  • Casio1
  • · Replies 5 ·
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5

Solve tan⁴x + tan²x = sec⁴x - sec²x

  • thorpelizts
  • · Replies 4 ·
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4

Graduate Why two given equations cannot both be true (fermat's for n=3)

  • drd0013
  • · Replies 2 ·
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2

Undergrad Translating m^2/C^2 to cm^2/μC^2 (couloumbs law)

  • lozzajp
  • · Replies 1 ·
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1

How do I add x to both sides of 2/3x = -x + 5?

  • Casio1
  • · Replies 1 ·
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1

Undergrad Recursive vs iterative approach

  • Avichal
  • · Replies 18 ·
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18

Undergrad Are my postulates true regarding circles?

  • student34
  • · Replies 1 ·
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1

What are you currently trying to prove / disprove?

  • uperkurk
  • · Replies 3 ·
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3

High School Need hlep with a triangle question (Trigonometry)

  • ultimatesoulx
  • · Replies 5 ·
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5

Minimizing oil distribution costs with shipping tax constraint

  • arl2267
  • · Replies 1 ·
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1

Linear Programming using the simplex method

  • arl2267
  • · Replies 6 ·
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6

Undergrad I cannot find the equation for this graph.

  • doubled5
  • · Replies 2 ·
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2

Prove $\prod_{r=0}^n (\cos 2^r A + \cos 2^r B)$ w/ $A,B$ Trig III

  • sbhatnagar
  • · Replies 4 ·
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4

Undergrad Can you use modular arithmetic to solve this?

  • jey1234
  • · Replies 4 ·
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4

Undergrad Math for optimizing solar panel angle throughout the year

  • gokuls
  • · Replies 8 ·
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8

High School What's the formula for finding the shortest distance between two points in 3D?

  • Patrick Kale
  • · Replies 9 ·
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9

High School Can physical measurement of √2 yield a rational number?

  • la6ki
  • · Replies 35 ·
2
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35

Equations of Sides of Square Inscribed in Circle

  • DrunkenOldFool
  • · Replies 6 ·
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6

Undergrad Finding exact values of cos(π/5) and cos(π/8) without a calculator

  • mathFun
  • · Replies 4 ·
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4

Undergrad Finding the index number on a stretched cartesian grid

  • jonasboy
  • · Replies 1 ·
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1

High School Changing the subject of this equation

  • dannybeckett
  • · Replies 5 ·
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5

Undergrad Boltzmann and Fourier for biologist

  • nucleargirl
  • · Replies 11 ·
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11

High School I could do the math if I had the numbers

  • John1397
  • · Replies 3 ·
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3

Graduate Proving that nothing does not exist

  • charlie_sheep
  • · Replies 4 ·
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4

High School Identifying equation types in word problems

  • Tyrion101
  • · Replies 6 ·
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6

Undergrad Difference between 2n and (2n) ?

  • Nikitin
  • · Replies 4 ·
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4

If you're a pure mathematician, why?

  • StJohnRiver
  • · Replies 9 ·
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9

High School An embarrassing problem with elementary mathematics (local time computation)

  • ag22
  • · Replies 4 ·
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4

High School Find Length of Altitude from A to BC in Triangle

  • justinh8
  • · Replies 5 ·
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5

Change of variables in a function

  • Dustinsfl
  • · Replies 5 ·
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5

High School Can you draw a cubic function with one real root without using calculus?

  • tahayassen
  • · Replies 11 ·
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11

Undergrad Multiplying by 1 adds a restriction?

  • tahayassen
  • · Replies 5 ·
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5

Undergrad Why Does Mathematics Favor Perfect Shapes to Model Imperfect Nature?

  • Niaboc67
  • · Replies 5 ·
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5

Graduate Angle projections to Euler angles

  • ashishbsbe
  • · Replies 1 ·
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1

High School Alternative for sphere volume:FAIL

  • Sulfur
  • · Replies 8 ·
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8

What are the roots of this polynomial with a beta coefficient?

  • Dustinsfl
  • · Replies 2 ·
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2

Undergrad Find the cubic polynomial satisfying f(0) = -5, f(1) = 0, f(2) = 15, f(3) = 52.?

  • escobar147
  • · Replies 3 ·
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3

Undergrad Where do "Other" Frequency's Come From when Multiplying Cos Waves?

  • CraigH
  • · Replies 3 ·
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3

Undergrad Is the equation(s) in this photo legitimate?

  • aziluth
  • · Replies 4 ·
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4

Graduate Theoretical optimisation of foreign exchange strategy

  • jason_85
  • · Replies 9 ·
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9

Simplify Complex Rational Expression

  • PaperStSoap
  • · Replies 4 ·
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4

Undergrad Linear interpolation of sin 36° using sin 0° and sin 60°

  • escobar147
  • · Replies 2 ·
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2

Graduate Obtaining a more accurate calculator?

  • Michio Cuckoo
  • · Replies 8 ·
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8

Undergrad How to Calculate Rotation of Points Between Two 3D Points?

  • simchris111
  • · Replies 3 ·
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3

High School What is the result of adding a HP series to a fraction sequence?

  • Puneeth423
  • · Replies 2 ·
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2

Graduate Finding certain wealth equivalent to expected utility 11.262

  • surferbarney0729
  • · Replies 1 ·
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1

What Is the Value of f(2) if f(x) = a^x and f(3) = 64?

  • goosey00
  • · Replies 4 ·
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4

What is a function?

  • Amer
  • · Replies 4 ·
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4

High School Expanding parenthesis when a negative is involved

  • educatingrob
  • · Replies 4 ·
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4

High School Is there formula for zeres of a cubic polynomial

  • vrmuth
  • · Replies 4 ·
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4

Undergrad Equation relating a function and its inverse

  • pmqable
  • · Replies 8 ·
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8

Finding a Ratio for Linear Recurrence Sequences

  • Casio1
  • · Replies 5 ·
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5

Undergrad The fields of applied mathematics

  • Cinitiator
  • · Replies 7 ·
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7

High School Explanation the difference between various types of plots

  • Ein Krieger
  • · Replies 4 ·
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4

Online calculators that have radians on the x axis

  • karush
  • · Replies 6 ·
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6

What approach should be taken to solve these two questions?

  • Fall3n
  • · Replies 3 ·
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3

High School Domain and Range of A Function

  • Calculuser
  • · Replies 12 ·
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12

Graduate What does a ellipsis directly following a summation mean?

  • ektrules
  • · Replies 2 ·
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2

Undergrad Sum of function inside radicals

  • hddd123456789
  • · Replies 2 ·
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2

High School An competitive question asked this time

  • varun atri
  • · Replies 1 ·
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1

High School From what I understand, there s some sort of computer calculating pi

  • LastTimelord
  • · Replies 6 ·
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6

High School Perfect Squares, Cubes, and More: Understanding Terminology

  • Diffy
  • · Replies 2 ·
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2

Solving 2x+3y=5 and 5x-2y=-16 by substitution

  • Casio1
  • · Replies 5 ·
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5

Undergrad Sequences-changing differences

  • Taylor_1989
  • · Replies 6 ·
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6

High School Understanding Logarithm Functions: f(x) = log(100x)

  • nesan
  • · Replies 4 ·
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4

Graduate When to take the derivative of a utility function?

  • surferbarney0729
  • · Replies 3 ·
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3

High School Surface area of a square and a tube

  • leroyjenkens
  • · Replies 11 ·
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11

Undergrad Why Does (n 0) Equal 1 in Combinatorics?

  • lalapnt
  • · Replies 3 ·
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3

High School So the question could be: How do I reexpress equations with P as the subject?

  • surferbarney0729
  • · Replies 4 ·
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4