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14
How to solve the differential equation $xx'' = (x')^2$?
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12
Of all polygons inscribed in a given circle which one has the maximum sum of squares of side lengths?
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11
How to maximize the product of scalar products?
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10
Limit of y(x) in Second Order Differential Equation
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10
Connecting the closest points on circles with a line
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9
Does the curve $2^2 x^2 + 4^2 y^2 = (x^2 + y^2)^2$ pass through $(0,0)$?
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8
Roots of a polynomial.
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8
Finding $n$ points $x_i$ in the plane, with $\sum_{i=1}^n \vert x_i \vert^2=1$, minimizing $\sum_{i\neq j}^n \frac{1}{\sqrt{\vert x_i-x_j \vert}}$
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8
Checking the solution to $2yy'=x(y')^2+4x,\ y(1)=-2$
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8
Solving Differential Equation System for HIV Treatment Model
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7
Evaluation of $\lim _{ x\rightarrow 0 }{ \frac { \sin ^{ -1 }{ x } -\tan ^{ -1 }{ x } }{ { x }^{ 3 } } } \quad $ without using L'Hospital rule
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7
Solving the system $5(\sin x + \sin y) = 1$ and $5(\sin 2x + \sin 2y) = 1$
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7
How to straighten a curve?
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7
How to use genetic algorithm to calculate the maximum value of this matrix
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6
Solving differential equations of the form $\theta''(t)+\theta'(t)+\theta(t-\delta)=0$
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6
Is there prime number of the form$1101001000100001000001.....$after the trivial one $k(0)=11$?
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6
Least square fit of ellipse worsens with increasing border thickness
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6
Solution to the $\displaystyle \phi'' + 4\phi' + 3\phi = x \cos {3x}. $
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6
RecurrenceTable does not work for sequence of function
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6
Convergence of $\sum_{n=1}^{\infty}e^{-\sqrt{n}}$ using the integral test
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6
Is there any way not to use l'Hôpital's rule when computing $\lim_{x\to8}\frac{\sqrt[3]x-2}{x-8}$?
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6
How to build a tri-diagonal matrix
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6
Expressing a polynomial as a sum of squares
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6
Nonlinear first order differential equation
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5
Finding solution without solving differential equation
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5
Area Calculation with Absolute Value Inequality $|x+2y|+|3x+4y|\le 5$
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5
Is $y’=x^y\implies xy’’-x\ln(x)y’^2-yy’=0,y’=y^x\implies xy'(x)^4-y(x)y'(x)^2 \left(xy''(x)+2y'(x)\right)+y(x)^2\left(y'''(x)y'(x)-y''(x)^2\right)=0$?
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5
Plotting Basins of Attraction of 3-dimensional system
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5
Finding "chains" of numbers in a matrix
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5
Solving Integral Equation -numerical solution
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