Differential Equations

Advanced calculus topics from Diff EQ go here.
R
Forced Oscillations & Resonance: x"+9x=10cos(2t),x(0)=x'(0)
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7
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5K
Deleted member 4993
D
D
Inverse Laplace transform of F(s)=(e^(-4s)-e^(-5s))/s^6
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2
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3K
tkhunny
tkhunny
F
soln of (1/r)(d/dr)(r(dT/dr))=0, T(r1)=T1, T(r2)=T2 is....
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3
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29K
Deleted member 4993
D
D
Convolutions of Laplace Transforms: f(t)=e^(at), g(t)=e^(bt)
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1
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3K
royhaas
R
F
Simple derivation: F(t)=1-e^(-1/t), E(t)=dF/dt=e^(-1/t)(....
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2
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3K
f0rked
F
R
variation of parameters: y'' + y = sin(x) + x cos(x)
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2
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9K
rooney
R
J
Forced Vibrations: ping-pong ball in vertical column
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7
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7K
jjm5119
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J
Method of Undetermined Coefficients Problem
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3
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3K
jjm5119
J
C
Product Rule for derivatives
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1
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2K
galactus
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H
Implicit Differentiation Problem: x^2 + zsin(xyz) = 0
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3
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8K
skeeter
skeeter
B
Undetermined Coefficients
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1
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4K
royhaas
R
J
Nonhomogenous Eq. and the Particular Solution
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4
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3K
jjm5119
J
P
Definition amount: f (x, y)=xye^(? ((x?a)^2)? ((y?b)^ 2))
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1
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2K
Deleted member 4993
D
M
Seperation of Variables: t*(dy/dt) = 4*y, y(1) = 2, t > 0
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2
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3K
moy1989
M
J
Repeated Roots: 4y'' - 12y' + 9y = 0, y(1) = 4, y'(1) = 2
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2
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8K
jjm5119
J
C
Autonomous Differential Equations
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2
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3K
Deleted member 4993
D
D
difference equations: y(n+2) - yn = 1, if y1 = y2 = 1
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1
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2K
soroban
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D
One more undetermined coefficients problem
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1
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2K
royhaas
R
D
Particular solutions using undetermined coefficients
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2
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3K
Daniel_Feldman
D
D
Help with Wronskian: if W is 3e^(4t), f = e^(2t), find g
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2
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5K
Deleted member 4993
D
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