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 Need help understanding Lambda Twist method for camera localization?

  • Huyanyinglei
  • · Replies 1 ·
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1

High School Why do we care about trig identities?

  • musicgold
  • · Replies 17 ·
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17

Problem solving calculating area

  • einie101
  • · Replies 7 ·
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7

Undergrad Product with an undefined term

  • mathman
  • · Replies 24 ·
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24

Rover's Friends: Calculating the Break-Even Price for Dog Washing

  • Ursus1
  • · Replies 2 ·
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2

Prove Triangle Inequality: AB/MZ + AC/ME + BC/MD ≥ 2t/r

  • solakis1
  • · Replies 1 ·
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1

Check if two points are symmetrics/asymmetric

  • Andsello1
  • · Replies 2 ·
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2

Calculating Boat Costs: Splitting 60/40 & Time Usage

  • ger1
  • · Replies 1 ·
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1

"How Much Money Do I Need for Transport to Visit Chris and John?

  • solakis1
  • · Replies 3 ·
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3

Undergrad Fundamental Theorem of Algebra: Proof

  • PeroK
  • · Replies 1 ·
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1

Undergrad Approximate Intelligence Quotient Gauge

  • DifferentialGalois
  • · Replies 11 ·
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11

High School Calculating trigonometry without calculator?

  • Xforce
  • · Replies 8 ·
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8

High School Help understanding continuing fractions

  • John3509
  • · Replies 16 ·
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16

How Can You Solve for y in the Equation $(a+b)^{a+b} = a^a + y$?

  • Another1
  • · Replies 1 ·
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1

Evaluating/Simplifying an Expression

  • kingzero
  • · Replies 2 ·
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2

High School Odd or Even? -1/x: Origin Symmetric?

  • FortranMan
  • · Replies 8 ·
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8

High School Mixing two discrete audio signals

  • entropy1
  • · Replies 13 ·
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13

[ASK]Quadratic Inequation (log_2x)^2+4>5log_7x+log_3x^2

  • Monoxdifly
  • · Replies 2 ·
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2

Calculate Selling Price for Cucumbers inc. VAT (42% Profit Margin)

  • LizQUIZE
  • · Replies 1 ·
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1

How Do You Calculate the Slant Height of a Cone?

  • gazparkin
  • · Replies 2 ·
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2

Motion along a straight line by a car

  • Nero1
  • · Replies 2 ·
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2

High school inequality 2 |x^2y-a^2b|<A

  • solakis1
  • · Replies 1 ·
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1

Please help for binomial expansion (2x-1/(2x^2))^9

  • blackholeftw
  • · Replies 1 ·
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1

Undergrad How can I go from sine to cosine using exponential numbers?

  • amama
  • · Replies 3 ·
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3

F(x)=ab^{x} where b must be a positive real number

  • Avalance789
  • · Replies 5 ·
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5

Value of b, y-intercept of Quadratic graph

  • gazparkin
  • · Replies 3 ·
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3
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1

Simplify a+b+c+d+2(ab+ac+ad+bc+bd+cd)+4(abc+abd+acd+bcd)+8(abcd)

  • dlecl
  • · Replies 3 ·
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3

Mathematician Daniel Tammet counts pi to 22,500 digits

  • ElliotSmith
  • · Replies 24 ·
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24

[ASK] Equation of a Circle

  • Monoxdifly
  • · Replies 4 ·
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4

High school simple algebra word problem

  • randyrandy
  • · Replies 2 ·
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2

High School Did Ramanujan's work look like crackpottery?

  • RPinPA
  • · Replies 4 ·
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4

Rearranging formula 3y + x = -1

  • gazparkin
  • · Replies 1 ·
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1

Prove Quadrilateral Divider: Equal Area & Perimeter

  • SatyaDas
  • · Replies 4 ·
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4

Computer Company's Break Even Point: 30000 Computers

  • Suraphel
  • · Replies 3 ·
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3

Multiple consists of only 6's and 7's

  • I like Serena
  • · Replies 11 ·
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11

Undergrad Help finding a triangle inside a triangle

  • aheight
  • · Replies 5 ·
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5

Undergrad Math olympiad -- Sample problems please?

  • Astro021
  • · Replies 1 ·
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1

Geostationary Orbits: Benefits & Challenges

  • Pasha
  • · Replies 3 ·
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3

Undergrad Recursive square root inside square root problem

  • Gionata
  • · Replies 27 ·
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27

Can a number that ends in 3 have a multiple consisting of only 1's?

  • I like Serena
  • · Replies 4 ·
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4

Inequality solve (x+1)/6<x-(3x-2)/4

  • karush
  • · Replies 2 ·
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2

Undergrad Exponential equation with logs

  • Dank2
  • · Replies 5 ·
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5

Undergrad Geometry question with a triangle

  • Dank2
  • · Replies 9 ·
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9

Find cost revenue and profit function

  • Suraphel
  • · Replies 1 ·
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1

High School Milankovitch Cycles: Find the 53,300,000 Year Cycle

  • g48dd
  • · Replies 7 ·
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7

Undergrad Number of Terms for Harmonic Series to Reach a Sum of 100

  • Thecla
  • · Replies 3 ·
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3

Undergrad Mathematic Definitions and Ideas

  • Query
  • · Replies 3 ·
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3

Find the Angle of Parable Tangent from Human Running Step

  • Barkiernan
  • · Replies 1 ·
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1

Undergrad The solution to a cubic equation

  • Charles Link
  • · Replies 2 ·
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2

Undergrad Binomial theorem with more than 2 terms

  • dyn
  • · Replies 8 ·
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8

Undergrad How would one calculate the distance and bearing of a signal source?

  • KevinTOC
  • · Replies 7 ·
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7

-3 circles centers on line segment PQ

  • karush
  • · Replies 2 ·
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2

High School Is every integer derived from 1?

  • donglepuss
  • · Replies 8 ·
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8

Solving Algebra equation 3x=15

  • Victor23
  • · Replies 4 ·
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4

71 Under what conditions does the ratio A}/B equal A_x//B_x

  • karush
  • · Replies 2 ·
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2

Trigonometry: Right-angled triangle

  • Brian Bart
  • · Replies 1 ·
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1

High School PEMDAS and the Ambiguity of Mathematical Notation in Physics

  • John3509
  • · Replies 19 ·
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19

[ASK] Find the volume of Pyramid in a Cube

  • Monoxdifly
  • · Replies 6 ·
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6

Given f(xy) = f(x)/y and f(500) = 3, find f(600)

  • mathtopamela
  • · Replies 2 ·
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2

Solving Inequality 4x-12≤6x+20

  • gazparkin
  • · Replies 1 ·
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1

High School Are there any points other than the origin where cosines are totally in phase?

  • PainterGuy
  • · Replies 16 ·
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16
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1

Undergrad Determining the number of independent equations

  • guideonl
  • · Replies 5 ·
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5

High School Great New Video from 3Blue1Brown on the IMO 2011 Problem 2

  • jedishrfu
  • · Replies 2 ·
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2

Understanding the Floor Function: How to Find ⌊0.785⌋

  • Yazan975
  • · Replies 2 ·
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2

Graduate Deriving an inequality from a paper

  • Andrew_99
  • · Replies 6 ·
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6

Real world trigonometry problem making furniture

  • shane3
  • · Replies 1 ·
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1

Find the possible values of k: x+1/y=y+1/z=z+1/x=k

  • lfdahl
  • · Replies 2 ·
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2

Find the cubic equation that has -1 and 2i as roots

  • pan90
  • · Replies 3 ·
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3

High School A proper comprehensive rule for arithmetic operation precendence

  • swampwiz
  • · Replies 1 ·
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1

Unraveling a Trigonometric Mystery

  • pan90
  • · Replies 2 ·
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2

Inverse Functions: Reflection of f(x) & g(x) Logic

  • pan90
  • · Replies 1 ·
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1

Simplify (√3 + 2√5)²: Step-by-Step Guide

  • pan90
  • · Replies 1 ·
Replies
1

Determine all possible values a/(a+b+d)+b/(a+b+c)+c/(b+c+d)+d/(a+c+d)

  • lfdahl
  • · Replies 2 ·
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2

High School Arc formula without the use of radius and angle

  • Danishk Barwa
  • · Replies 10 ·
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10

High School Check if two points are symmetrics/asymmetric

  • Andsello
  • · Replies 3 ·
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3
Replies
1

High School Understanding Ratio Basics to Splitting Costs with a 3:1 Ratio

  • kenny1999
  • · Replies 2 ·
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2
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1

High School I need word problems about a pair of straight lines

  • pairofstrings
  • · Replies 4 ·
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4

Manipulating quadratic and exponential expressions

  • mdp448
  • · Replies 1 ·
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1
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3

Undergrad What is the proof of the rules of significant figures?

  • fxdung
  • · Replies 3 ·
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3

Finding the Equation of a Circle Passing Through Three Given Points

  • karush
  • · Replies 7 ·
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7

Can WGS-84 Coordinates be Used to Calculate Closing Speeds for Airplanes?

  • catmitt98
  • · Replies 3 ·
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3

Proof of the Division Algorithm

  • matqkks
  • · Replies 3 ·
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3

Undergrad How to get the absolute position of a relative object?

  • GuillemVS
  • · Replies 6 ·
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6

Smallest possible area of triangle

  • gazparkin
  • · Replies 3 ·
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3

Why certain topics in elementary number theory?

  • matqkks
  • · Replies 2 ·
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2

High School A question about Greatest common factor (GCF) ?

  • awholenumber
  • · Replies 17 ·
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17

Undergrad How did the Greeks deal with sqrt(2)?

  • musicgold
  • · Replies 5 ·
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5

Undergrad How to evaluate the Greatest Common Divisor?

  • matqkks
  • · Replies 2 ·
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2

Undergrad Why certain topics in elementary number theory?

  • matqkks
  • · Replies 5 ·
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5

[ASK] Find the ratio of the area of triangle BCH and triangle EHD

  • Monoxdifly
  • · Replies 4 ·
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4
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1

Solve for the angles in a triangle

  • gazparkin
  • · Replies 4 ·
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4

High School Problem with an Equation -- Solving for "a" in this large equation

  • TheShermanTanker
  • · Replies 2 ·
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2

Undergrad How can I tell how much an object will shrink when it moves away?

  • JeffCyr
  • · Replies 3 ·
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3

Electrical Engineering Problem

  • littlemac1
  • · Replies 1 ·
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1