Differential Equations

Advanced calculus topics from Diff EQ go here.
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Airy Equation: Version 2 (Find solution to d^2y/dx^2 - xy = 0 near 1)
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3
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2K
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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4K
khansaheb
K
T
Newton's second law as an introduction to Betz's law
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8
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2K
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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4K
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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1K
khansaheb
K
A
Finding differentials and solve in terms of other differentials
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1
Views
980
blamocur
blamocur
M
Airy Equation
2
Replies
20
Views
4K
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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2K
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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1K
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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6K
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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2K
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
2K
mario99
M
O
A basic linear differential equation wrong solution: cosx * y' = cosx + 2sinx * y
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2
Views
1K
topsquark
topsquark
T
is f'(x) - x^2 - x = -4 a differential equation, or not ?
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1
Views
830
stapel
stapel
W
How do we solve a wave equation using spherical mean, and what is the idea behind it?
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1
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823
blamocur
blamocur
M
Derivative of Jacobi elliptic sine
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2
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1K
Maximus2023
M
H
In a container containing 50 liters of copper, zinc is mixed in at a rate of 10 liters per minute.
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6
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2K
mmm4444bot
mmm4444bot
M
What to cover in a differential equations module?
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2
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1K
farhan
F
K
Simplification of Differential Equation: dy/dx = -2x * e^(x^4)
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5
Views
2K
pka
pka
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