Differential Equations

Advanced calculus topics from Diff EQ go here.
M
Help with using integrating factor to solve dy/dt = 2x + 4t (ans: -2t -1 + ce^(2t))
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3
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3K
MisterMD
M
S
Higher Order Differential Equation: (D^3 + 1) y = cos^2(x/2) + e^{-x}
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1
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3K
Deleted member 4993
D
P
Linear systems in matrix notation
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1
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2K
stapel
stapel
S
Mixture problem
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2
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2K
stueck9356
S
A
stationary solution for u(x,t)=v(x,t)+h(x) for heat PDE with BC of U1
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5
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3K
aows61
A
F
[Z transform] problem with MATLAB
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0
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2K
Franklin_Ngo
F
P
Laplace transform of piecewise function: Find L {f(t)}, f(t)= 0 ; 0<t<1 t ; t>1
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4
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3K
promitheus
P
M
Differentiate ε = 4x10^−5t^4−0.0024t^3+0.0487t^2−0.3428t+1.4532
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9
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4K
mmm4444bot
mmm4444bot
P
Fundamental set of solutions for a DE: functions cos(ln x) and sin(ln x)
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2
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4K
promitheus
P
D
Simultaneous eqns: 4x(x^2+y^2-1)=0, 4y(x^2+y^2+1)=0
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2
Views
2K
stapel
stapel
H
Show that (x^3)(dy/dx)+4=2x^2y can be reduced to dz/dx=-4/x^5 by using y=zx^2
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4
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3K
Deleted member 4993
D
S
Separable Differential Equations: general solution to dy/dx = -x/y
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7
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7K
ksdhart2
K
D
Second order nonhomogeneous using wronskian: x^2 y" - 3xy' + 4y = log(x)
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1
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2K
mmm4444bot
mmm4444bot
L
Derivative of an integral
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1
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3K
Deleted member 4993
D
K
Method of Undetermined Coefficients: y'' - 5y' + 6y = 3e^(3x) + 5x - 2
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2
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5K
Kevin98
K
P
Solve: x''(t) = g(1 + c*x(t)) by method of variation of parameters
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0
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1K
patbuzzatto
P
K
Rate of Production of Methane by Methanosarcina
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0
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1K
ksdhart2
K
D
Fundamental question: we know that y = x dy/dx, or rather... y/x = dy/dx...
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3
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3K
Steven G
Steven G
N
Solve the system of DE: dx/dt + 2x/t = 1, dy/dt = x + y + 2x/t - 1
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4
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3K
Deleted member 4993
D
A
Need help to understand problem to solve it in matlab
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3
Views
2K
azhar293
A
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