General Math Forum

Graduate Can Impossible Inequalities Be Solved with Positive Real Numbers?

High School Why is Euclid's Elements rarely taught in high school geometry classes?

Undergrad Why use convergence rather than divergence for the angle between two vectors

Undergrad Does assuming the premise and arriving at a truth constitute a valid proof?

Undergrad The two dimensional regular polygons.

High School How Long to Boil a Larger Kettle of Water?

Graduate What is the graph of an n-D hyperplane with 10 axis?

Undergrad Is My Graphing Method for (1/x)<x<1 Correct?

Undergrad Is it possible to write a program that outputs its own code in Perl?

Undergrad Numeral value of this Sin(1)*Sin(2)*Sin(3)* *Sin(89)

High School Does 0.999... equal 1?

Graduate Weird reciprocal sums of integers

High School What does the golden ratio equation (a+b)/a=a/b mean?

Graduate Can you solve the n-dimensional sphere packing problem?

High School How Much Does the Envelope Cost in the Riddle?

Undergrad Questions about phi and infinity?

High School Surface area formula for half a triangular prism

Undergrad Four people with red and blue hats: who knows their color?

High School What Are Other Types of Proportion Beyond Direct and Inverse?

High School Brainteaser: Solve the Rope Puzzle with Matches!

Graduate Video inside: could someone explain how this works?

High School One Divided by Zero: What Is the Answer?

Graduate What is the significance of the complex Fourier spectrum in signal processing?

Graduate Fermat's Last Theorem is too Liberal

Undergrad What is the Solution to the Equation (ArcSinx)^3+(ArcCosx)^3 = a?

Undergrad Parabolas and hyperbolas - how do you find them?

High School How do I simplify (x-5)+(x^2(x-5)) to (x^2+1)(x-5)?

Graduate Sin^5(x)+Cos^5(x) Equation Solution for Mathematicians

Graduate Minimizing Area Bound by Parabola and Normal Chord: Putnam 1951 A6

Undergrad Need intro texts to Chaos theory

Undergrad How Does Signal Speed Change with Movement in Parallel Paths?

Undergrad Descriptive Geometry challenge

High School Can you take an even root of a negative number?

Undergrad Will math major options affect graduate school admissions?

Graduate Sum-to-Product Identity for Multiple Cosine Functions

High School Square Root of a Negative Number?

Undergrad How Do You Creat A Moving Mental Image From An Equation?

High School Ideas as how to improve your mental math?

Undergrad Imaging mathematics fundamentals

High School What is the length of a shadow at 8am?

Graduate Extension of Fermat's theorem?

Undergrad Trigonometric Functions And Identities

Graduate Can induction prove that P(x) has a unique positive zero?

High School What is the Flawed Proof That 1 Equals -1?

Undergrad Perfect aide for calc 1,2 and 3 students

High School What Does Multiplication Really Mean?

Undergrad Why does a drawbridge's peak create weird acceleration on a bike?

Graduate Can one divide a circle into 9 areas without the areas being equal?

Undergrad Real World Applications of Imaginary Numbers

Undergrad Does chaos theory apply to turbulence in aeronautics?

Graduate What is the optimal point to change strategies in a recreational math problem?

Undergrad What did Kepler do for the field of mathematics?

Graduate Find Fitting Function for Plot Without Data Points

High School Red car catching blue car on same plane: is my method correct?

Undergrad Triagulating radio frequencies

High School Finding the exact value of tan 15 + tan 30 / 1 - tan 15 * tan 30

Undergrad How do you find a recurrence relation from a given problem?

Undergrad With math be the same everywhere?

High School Trinomials that are set equal to zero

High School What's the difference between combinatorial and combinatoric?

Graduate Miserable Math Class, Finally Over

Undergrad What is the rigorous proof for 1+1 = 2?

Undergrad Rainbow table reduction function

Graduate How Can I Prove that a_{n+1}>a_n for All n in a Tough Sequence?

Undergrad Equation for sunrise/sunset times

Undergrad How Do You Solve Gamma Functions Like \Gamma(5/4)?

Undergrad Is there an algebraic explanation for the identity atan(a/b) + atan(b/a) = pi/2?

High School Is There a Straightforward Proof for the Cosine Rule?

Undergrad Given 3 points how to find the centre and radius of a circle in 3 D?

High School Finding Coordinates of Partial Arc Radius Without Sine and Cosine Functions

High School What Is the Use of Families of Straight Lines in Geometry?

Undergrad Arithmetic mean always greater than geometric mean

Undergrad Sector angle and segment area just given only 2 variables ?

Undergrad How come some equations can't be solved for an exact answer?

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High School So, Math Prodigy - is it a natural talent or a taught skill?

Undergrad SinA + sinB + sinC <= (3 x 3^0.5 )/2

High School Graphing Inequalities in Geometer's Sketchpad

Undergrad Is it 2nd order polynomials, or 2nd order quadratics?

High School How do you translate word phrases into algebraic symbols?

High School How did you learn the greek alphabet?

Undergrad Trigonometric inverse functions

High School I would love to hear your thoughts on this intriguing topic!

High School Why does my TI-83 give zero for 0.001^100?

Graduate Hm turning a sphere inside out what's the point?

Undergrad Calculating Eccenticity of a Pair of Straight Lines

Graduate Why is the unitary operator U_f the identity for a constant function?

Undergrad How Can I Solve This Illogical Math Problem on Boat Traveling and Crosscurrent?

Undergrad What Is the Angle of the Pushed Back Face on a Parallelepiped?

Graduate Why does this CNOT matrix flip the second bit regardless?

High School Odd Numbers Starting with Even Number ≤ 100,000

Undergrad Books on foundations of algebra and Euclidean geometry

Undergrad Intersect of three sinusoidal functions

High School What are the Funniest Proofs in Geometry?