Differential Equations

Advanced calculus topics from Diff EQ go here.
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Differential equations - verification of homogenous solution
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3
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3K
tkhunny
tkhunny
C
Newton's law of Heating and Cooling issues
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1
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2K
tkhunny
tkhunny
F
What are the steps in these equations?
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3
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3K
j-astron
J
J
Inverse laplace transform, formula help please: L−1[e(-2πs-2s)/(s2-4)]
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3
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16K
Deleted member 4993
D
G
partial differentials: ∂∂tA(y,t)+6ΛΩ(y2−y)sin(t)=∂2∂y2A(y,t)
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1
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2K
Ishuda
I
A
How to represent as DE ?
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4
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2K
aaeerr
A
M
Diff-EQ: integrating factors - signals (how could f(t)δ′(t) be simplified?)
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3
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8K
elensimons
E
D
i think its a algebra or rhyth sorry i am bad at this please look appreciate help
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2
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2K
stapel
stapel
F
non homogeneous general solution to d^2x/dt^2 + 2dx/dt-3x=5e^-t+sin3t
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4
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3K
stapel
stapel
R
Separable Differential Equation: (t^2 + 16)dx/dt = (x^2 + 36)
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1
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2K
Deleted member 4993
D
G
Partial anti-deriv's: I get to -x^3 - x^2 y^2 - x^2 y^2 = c, but then I can't get ans
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2
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2K
gw1500se
G
G
Mixtures for brewing coffee (basic mixture model is da/dt= (rate in) - (rate out) )
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2
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2K
gtrautman
G
A
exact diffrential equation: solve p(x,y) dx +(4y^3 - 6x^3 y) dy=0
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1
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2K
Deleted member 4993
D
S
Runge-Kutta 2nd order (Midpoint method) confusion (for y=vtsin(θ) -0.5gt^2 )
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1
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4K
tkhunny
tkhunny
L
3 species Predator Prey Model: dP1/dt = P1( a - bP1) - cP1P2, dP2/dt = dP1P2 - ...
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1
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2K
tkhunny
tkhunny
S
Growth and Decay: population growth is proportional to current population
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1
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2K
tkhunny
tkhunny
B
Getting 0 for a particular solution: r^2*dy/dr = K, r>0, K constant
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5
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2K
bulldog160
B
G
Enthalpy: Show that h_x - (1/rho)p_x = 0, h + v^2/2 = (constant)
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2
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2K
stapel
stapel
M
Calculating Speed
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1
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2K
Deleted member 4993
D
G
Solving Exact Diff. Eqns w/ Coefficients >1 in Soln: dr/dΘ=(r^2 sin Θ)/(2r cos Θ -1)
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5
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4K
gw1500se
G
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