Mary Star

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How can we find geodesics on a one sheet hyperboloid?

differential-geometry surfaces geodesic asked Jan 5, 2016 at 18:07

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16 votes

Show that $f^{(n)}(0)=0$ for $n=0,1,2, \dots$

calculus asked Jun 29, 2014 at 16:42

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11 votes

Show that there are $ a,b \geq 0 $ so that $ |f(x)| \leq ax+b, \forall x \geq 0.$

real-analysis analysis continuity uniform-continuity asked Feb 26, 2014 at 12:21

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11 votes

Centre of the circle

differential-geometry circle curvature asked Oct 15, 2015 at 18:47

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11 votes

Geodesic curvature of sphere parallels

differential-geometry curvature geodesic asked Dec 27, 2015 at 14:48

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10 votes

Curvature of a regular curve is a smooth function of parameter if it does not vanish

differential-geometry curves curvature asked Oct 1, 2015 at 17:21

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10 votes

Show that $t^n-1 \mid t^m-1 \Leftrightarrow n\mid m$

abstract-algebra number-theory elementary-number-theory asked Jul 30, 2015 at 15:13

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9 votes

Algorithm to answer existential questions - Reduction

number-theory logic computability formal-languages proof-explanation asked Aug 1, 2015 at 1:08

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9 votes

$F[t]$ has undecidable positive existential theory in the language $\{+, \cdot , 0, 1, t\}$

number-theory logic computability formal-languages asked Aug 2, 2015 at 15:06

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9 votes

Differential algebra and differential-algebraic equations

differential-equations differential-algebra asked Aug 24, 2015 at 8:37

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Top Answers

How to calculate limit of a function having factorial in denominator

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Showing an indentity with a cyclic sum

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Taking Calculus in a few days and I still don't know how to factorize quadratics

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In the Quadratic Formula, what does it mean if $b^2-4ac>0$, $b^2-4ac<0$, and $b^2-4ac=0$?

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Big $O$, little $o$ Notation

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Evaluation of the integral of $e^{-(x^2+y^2)}$ over a disk

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If $f(3x)=f(x)+f(3)$, prove that

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Do these two parametric equations represent the same curve?

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Inconventional Integral inequality

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Simplifying this sigma notation

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How does $2^n + 2^n = 2^{n+1}$?

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How to deduce a closed formula given an equivalent recursive one?

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Solving a logarithmic expression without a calculator

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Can we have $ab=0$ in a ring, where $a,b$ non zero?

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Calculus / substituing in f(x)+g(x) to find h'(x)

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Help with a proof with combination: $\binom{n}{k}\binom{k}{m} = \binom{n}{m} \binom{n-m}{k-m}$

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Area of a Curved Surface

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Polynomial Division - "Define the largest natural number..."

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Recognizing the sequence 1/16, 1/8, 3/16, 1/4, 5/16, ...

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Derivative: $f_x, f_y, f_{xy}$ of function - $f(x,y)$

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Matrix Theory: Orthogonal Matrix

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How do I show that f is strictly decreasing on (0, infinity)?

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Integrate $\int \left(A x^2+B x+c\right) \, dx$

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Find equation of tangent line to a curve $g(x)$ at $x=4$

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How to solve the quadratic equation $x^2-1=2$?

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How would I find a point on the y-axis equidistant from two other points?

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difference between the polynomials

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Calculus (Integration)

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