Differential Equations

Advanced calculus topics from Diff EQ go here.
J
Log-linearization around steady-state
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1K
janka
J
M
Example of function so that is continuous but its derivative is not.
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5
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1K
Steven G
Steven G
M
Separation of Variables Substitution
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4
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1K
Metronome
M
Viona
Schrödinger Equation in Spherical Coordinates
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3
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1K
topsquark
topsquark
Viona
Recursion Formula
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6
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2K
Viona
Viona
M
Differential eqn: |d/dx| (( 3y=sqrt{-(u-1)^3} - sqrt{(u+1)^3} )) u=2x
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1
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1K
Steven G
Steven G
M
Heun's method: y_{n+1}=y_n + (h/4)(k_1 + 3k_2), k_1=f(x_n,y_n), k_2=f(x_n + 2h/3,y_n+
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0
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1K
m2017
M
B
Calculus of Variations: Find extremal of functional I[y(x)] = ∫(e-x·y′² - ex·y2)dx
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0
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1K
Belief7
B
K
Chebyshev fitting: direct way of fitting same data to lower degree chebyshev pol.?
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0
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1K
kepler
K
D
Laplace transforms when to use derivative? example: t(e^-t) cos3t
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1
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1K
tkhunny
tkhunny
K
Rewrite the system as 3 coupled linear differential equations
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1
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931
HallsofIvy
H
W
1st-, 2nd-Order Diff-EQs: Find mu(y) for 2y^2(x+y^2)+xy(x+6y^2)(dy/dx=0, and hence...
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2
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1K
HallsofIvy
H
S
Help MathCad 15: water tank w/ leakage rate prop. to sqrt of water column
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1
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1K
HallsofIvy
H
J
Stability in Euler method for integration: stability limit is h = -2/(lambda)
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0
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877
Jnash1997
J
T
Differential Equation luminescence qh/(h^2+(x−x0)^2+(y−y0)^2)^3/2
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0
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925
tomtom1029
T
C
Solution of eq (x^2+y)^2dy=xydx
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1
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934
frank789
F
V
Shrodinger's equation step: -h^2/2m d^2psi/dx^2 + 1/2mw^2x^2psi = Epsi
2
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25
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7K
mmm4444bot
mmm4444bot
M
Help with doing Fourier Transform on this periodic function of a note by a clarinet
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0
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716
Marko811
M
B
Laplace's Equation: d^2 T/dx^2 + d^2 T/dy^2 = 0
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2
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1K
HallsofIvy
H
S
Find and solve the FOC associated to the problem: Min xy subject to x^2+ 4y^2= 1.
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1
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1K
HallsofIvy
H
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