Mathlover

2,900 reputation

2521

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I am an engineer who is in love with math and lifelong math student. I love to learn new things in mathematics for self-satisfaction. My idols are Gauss , Euler , Ramanujan because they were in love with math as I feel.

	2,900 reputation	bio	website		visits	member for	1 year, 4 months
2521 badges		location			seen	14 hours ago

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165 Favorites

added views newest activity votes

147

373

votes

answers

kviews

Can I use my powers for good?

soft-question career-development

apr 11 at 0:40 MGA 70

votes

answers

kviews

Understanding Gödel's Incompleteness Theorem

logic incompleteness

nov 1 at 6:48 Holdsworth88 3,460

votes

answers

kviews

Funny identities

big-list

apr 29 at 6:07 John Marty 936

votes

answers

kviews

Why can ALL quadratic equations be solved by the quadratic formula?

algebra-precalculus polynomials quadratics

jan 25 at 11:18 George Frank 131

votes

answers

kviews

Are non-circular manholes possible?

geometry

aug 1 at 15:15 Hans-Peter E. Kristiansen 445

votes

answers

kviews

Surface Element in Spherical Coordinates

differential-geometry multivariable-calculus vector-analysis spherical-coordinates

nov 13 at 21:41 Valentin 2,812

votes

answers

kviews

A program to draw simple geometry (points, lines, dotted lines etc.)

geometry math-software

jun 12 '12 at 15:57 MJD 20.6k

votes

answers

kviews

Intuitive explanation of Cauchy's Integral Formula in Complex Analysis

intuition complex-analysis

apr 14 '11 at 5:18 Community♦ 1

votes

answers

kviews

What is the real life use of hyperbola?

conic-sections applications

apr 11 at 21:24 nneonneo 115

votes

answers

kviews

How Can One Prove $\cos(\pi/7) + \cos(3 \pi/7) + \cos(5 \pi/7) = 1/2$

trigonometry proof-strategy popular-math

sep 19 at 19:37 Chris's wise sister 11.5k

votes

answers

kviews

Does $\zeta(3)$ have a connection with $\pi$?

sequences-and-series analysis pi riemann-zeta zeta-functions

apr 26 '12 at 21:10 Community♦ 1

votes

answers

kviews

How do we prove $\cos(\pi/5) - \cos(2\pi/5) = 0.5$ ?.

trigonometry

may 9 at 8:00 Stefan Hansen 8,468

votes

answers

kviews

How did Hermite calculate $e^{\pi\sqrt{163}}$ in 1859?

real-analysis math-history

jan 26 '12 at 3:52 J. M. 38.8k

votes

answers

kviews

How to transform a set of 3D vectors into a 2D plane, from a view point of another 3D vector?

geometry transformation 3d

jul 10 at 15:41 Matthew Slyman 6

votes

answers

kviews

Methods to see if a polynomial is irreducible

abstract-algebra polynomials

may 4 '11 at 8:10 Bruno Stonek 3,133

votes

answers

982

views

Need a result of Euler that is simple enough for a child to understand

soft-question big-list education

feb 5 '12 at 6:04 Peter Tamaroff 25.3k

votes

answers

975

views

Why is $\int_{0}^{\infty} \frac {\ln x}{1+x^2} \mathrm{d}x =0$?

calculus integral improper-integrals

jan 30 at 7:31 Mhenni Benghorbal 13.8k

votes

answers

971

views

What philosophical consequence of Goedel's incompleteness theorems?

logic computability philosophy incompleteness

apr 14 '12 at 20:04 Iasafro Maesman 955

votes

answers

810

views

how to prove DEF is an equilateral triangle?

homework geometry triangle

jan 24 at 0:19 Victor Wang 141

votes

answers

798

views

Evaluating $\int\limits_0^\infty \! \frac{x^{1/n}}{1+x^2} \ \mathrm{d}x$

calculus complex-analysis integral integration improper-integrals

aug 6 at 23:26 Rajesh K Singh 1,009

votes

answers

766

views

Original works of great mathematician Évariste Galois

number-theory reference-request algebraic-geometry galois-theory

aug 2 at 21:16 Philip Dabous 11

votes

answer

739

views

Using the Laplace transform to evaluate the steady-state of a function

laplace-transform

mar 22 '12 at 21:50 Community♦ 1

votes

answers

736

views

Visual Ways to Remember Cross products of Unit vectors? Cross-product in $\mathbb F^3$?

geometry cross-product

jan 13 at 6:10 hhh 1,502

votes

answer

719

views

Intuition behind looking at permutations of the roots in Galois theory

intuition galois-theory

sep 16 '11 at 18:24 Arturo Magidin 158k

votes

answers

709

views

Proof of $\frac{d}{dx}e^x = e^x$

calculus limit

sep 16 at 18:19 voithos 165

votes

answers

703

views

Possibility to simplify $\sum\limits_{k = - \infty }^\infty {\frac{{{{\left( { - 1} \right)}^k}}}{{a + k}} = \frac{\pi }{{\sin \pi a}}} $

calculus sequences-and-series trigonometry special-functions

oct 28 at 3:57 Argon 9,223

votes

answers

693

views

Evaluating $\int_0^\infty \sin x^2\, dx$ with real methods?

real-analysis integral trigonometry

sep 16 at 12:40 Chris's wise sister 11.5k

votes

answers

665

views

Evaluate $\int_0^1\left(\frac{1}{\ln x} + \frac{1}{1-x}\right)^2 \mathrm{dx}$

calculus real-analysis integral definite-integral improper-integrals

1d ago Cody 2,613

votes

answer

643

views

Is there really no way to integrate $e^{-x^2}$?

calculus integral

apr 9 at 14:27 Cameron Buie 27.2k

votes

answers

630

views

On calculating $\displaystyle \int_0^1\ln(1-x^2)\;{dx}$ — where is the mistake?

analysis sequences-and-series integral power-series

mar 19 '11 at 19:46 joriki 92.1k