Differential Equations

Advanced calculus topics from Diff EQ go here.
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Ayers Differential Equations Chap 2 Problem 3
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240
Joseph P.
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Ayer's Differential Equations Chap. 2 Problem 3
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252
Joseph P.
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Solve dy/dx= 6e^y sin3x when y=0 and x=0
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11
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1K
mario99
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Question about differential order of operations/properties
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6
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1K
blamocur
blamocur
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General Solution for System of Differential Equations
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2
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772
tommcgtx
T
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Please anyone help me understand: dy/dx = (2 * dz^2 * y^(3n) - 2x^4 * ay^(-n^3) - az * (m^2 - y^3)) / (y^3 * dz)
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0
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579
kaif78
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Please help me understand and solve the second-order DM: yy" + y = (y')^2
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1
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602
mario99
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Burgers equation: du/dt + u * du/dx - v* (d^2u/dx^2) = 0, with u(x,0)= 2 for x < 0 u(x,0)= 0 for x >/= 0
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1
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861
mario99
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derivating v(x, t) := u(x-4t, t) on x and t (partial derivatives)
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13
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2K
MathNugget
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A very small detail in the linear 2rd order diff equation regarding integral of tanx
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1
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534
Dr.Peterson
Dr.Peterson
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Help solve (y log x)dx + (x - log y) dy = 0: I have used integrating factor log(y/x)
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8
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1K
blamocur
blamocur
M
Laplace in Three Dimensions: [math]\frac{\partial^2 u}{\partial x^2} +\frac{\partial^2 u}{\partial y^2} + \frac{\partial^2 u}{\partial z^2} = 0[/math]
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2
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1K
mario99
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Solve this Differential Equation: u"(x) = (lambda * (e^{-x} / x - k^2) u(x) = 0
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5
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1K
mario99
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Solve this Differential Equation: (1+x^2)u"(x) + 2xu'(x) - 2u(x) = 0, u(x) = (c_1)x + (c_2)(1 + x*tan^{-1}(x))
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15
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2K
mario99
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Find Green's function G(x,t;x',t') for the operator L = partial/partial-t - k*(partial^2 / partial-x^2) in the region...
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0
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479
mario99
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How do I go about solving this problem? Let f(t) = |t| for -1<t<1; find periodic soln to x"+(pi)^2 x = f(t)
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7
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1K
blamocur
blamocur
C
Why is my Laplace Inverse wrong?
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2
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553
BobP
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Laplace PDE that will Blow your Mind: partial^2-u/partial-x^2 + partial^2-u/partial-y^2 = 0,...
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3
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1K
mario99
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How to draw phase portrait for systems? (a) dx/dt=0, dy/dt=0; (b) dx/dt=x, dy/dt=0; (c) ...
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1
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630
stapel
stapel
A
Exponential growth: ""Grain is pouring from a hopper on to a barn floor where it forms a conical pile..."
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8
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1K
khansaheb
K
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