Differential Equations

Advanced calculus topics from Diff EQ go here.
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Need help solving non-homogeneous ODE: d^2(y)/dt^2 + y = -cos(t), y(0) = 1, y'(0) = 0
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1
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1K
nasi112
N
M
Steady-State Solution to PDE
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3
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3K
nasi112
N
A
solving partial differential equation with laplace
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2
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2K
The Highlander
The Highlander
M
Partial Differential Equation (partial-y/partialt = k * partial^2-y/partial-x^2)
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10
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1K
nasi112
N
G
[Differential Equations HW help] What is the "geometric interpretation of a graph of a differential Equation"?
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4
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1K
Dr.Peterson
Dr.Peterson
M
Airy Equation: Version 2 (Find solution to d^2y/dx^2 - xy = 0 near 1)
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3
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952
Steven G
Steven G
P
Please help to solve this problem: u=f(x,y) satisfies d^2u/dx^2 + d^u/dy^2 = 0 in 0<x<1, 0<y<1, with...
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19
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2K
khansaheb
K
T
Newton's second law as an introduction to Betz's law
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8
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928
blamocur
blamocur
M
  • Locked
Method of Variation and Green Function: d^2y/dx^2 + 4y = -e^x, 0<x<L, y(0) = y(L) = 0
2
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20
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2K
topsquark
topsquark
D
System of ODEs...challenge! (dM(s)/ds) = D * w(s), (dw(s)/ds) = w(s) * M(s) * (1/s^2)
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3
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670
khansaheb
K
A
Finding differentials and solve in terms of other differentials
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1
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600
blamocur
blamocur
M
Airy Equation
2
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20
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2K
stapel
stapel
L
Eigenvalues
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2
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3K
stapel
stapel
P
Initital value problem: x" - 2x' + 2x = e^(2t) sin(t), with x(0) = 3/5, x'(0) = 1
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2
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912
PhysicsCat
P
P
Hermite differential equation: H_n(t) = (-1)^n e^(t^2) (d/dt)^n e^(-t^2)
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2
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697
PhysicsCat
P
B
Totally stuck on non exact differential equation: (x - sqrt{x^2 + y^2}) dx + y dy = 0
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7
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2K
stapel
stapel
O
Third order non-homogenous diff-eq w/ constant coefficients: y''' - y'' + y' - y = cos(x) + 2e^x
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4
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800
nasi112
N
M
2 sol'ns to Airy Equation y" - xy = 0: one is an almost-factorial power series; the other is similar
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5
Views
897
mario99
M
O
A basic linear differential equation wrong solution: cosx * y' = cosx + 2sinx * y
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2
Views
670
topsquark
topsquark
T
is f'(x) - x^2 - x = -4 a differential equation, or not ?
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1
Views
439
stapel
stapel
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