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Free Math Help
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Differential Equations
Advanced calculus topics from Diff EQ go here.
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M
Differential eqn: |d/dx| (( 3y=sqrt{-(u-1)^3} - sqrt{(u+1)^3} )) u=2x
MathDummy55
Nov 21, 2018
Replies
1
Views
480
Nov 21, 2018
Jomo
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+
m2017
Nov 20, 2018
Replies
0
Views
458
Nov 20, 2018
m2017
M
B
Calculus of Variations: Find extremal of functional I[y(x)] = ∫(e-x·y′² - ex·y2)dx
Belief7
Nov 19, 2018
Replies
0
Views
556
Nov 19, 2018
Belief7
B
K
Chebyshev fitting: direct way of fitting same data to lower degree chebyshev pol.?
kepler
Nov 7, 2018
Replies
0
Views
601
Nov 7, 2018
kepler
K
D
Laplace transforms when to use derivative? example: t(e^-t) cos3t
datsun72
Nov 6, 2018
Replies
1
Views
569
Nov 6, 2018
tkhunny
K
Rewrite the system as 3 coupled linear differential equations
Kemikeren
Nov 2, 2018
Replies
1
Views
395
Nov 6, 2018
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...
Wothom83
Oct 23, 2018
Replies
2
Views
608
Oct 27, 2018
HallsofIvy
H
S
Help MathCad 15: water tank w/ leakage rate prop. to sqrt of water column
Saila
Oct 23, 2018
Replies
1
Views
436
Oct 24, 2018
HallsofIvy
H
J
Stability in Euler method for integration: stability limit is h = -2/(lambda)
Jnash1997
Oct 21, 2018
Replies
0
Views
324
Oct 21, 2018
Jnash1997
J
T
Differential Equation luminescence qh/(h^2+(x−x0)^2+(y−y0)^2)^3/2
tomtom1029
Oct 20, 2018
Replies
0
Views
440
Oct 20, 2018
tomtom1029
T
C
Solution of eq (x^2+y)^2dy=xydx
calculuslove
Oct 17, 2018
Replies
1
Views
406
Oct 19, 2018
frank789
F
V
Shrodinger's equation step: -h^2/2m d^2psi/dx^2 + 1/2mw^2x^2psi = Epsi
Vol
Sep 18, 2018
2
Replies
25
Views
2K
Oct 18, 2018
mmm4444bot
L
Need help solving non-homogeneous ODE: d^2(y)/dt^2 + y = -cos(t), y(0) = 1, y'(0) = 0
lukaszskowron96
Oct 16, 2018
Replies
0
Views
262
Oct 16, 2018
lukaszskowron96
L
M
Help with doing Fourier Transform on this periodic function of a note by a clarinet
Marko811
Oct 14, 2018
Replies
0
Views
256
Oct 14, 2018
Marko811
M
B
Laplace's Equation: d^2 T/dx^2 + d^2 T/dy^2 = 0
Bob_2013
Oct 14, 2018
Replies
2
Views
455
Oct 14, 2018
HallsofIvy
H
S
Find and solve the FOC associated to the problem: Min xy subject to x^2+ 4y^2= 1.
spaul
Oct 11, 2018
Replies
1
Views
330
Oct 12, 2018
HallsofIvy
H
F
Does this not create solutions out of nowhere? x(dy/dx) = y^2 - y
frank789
Oct 10, 2018
Replies
6
Views
504
Oct 11, 2018
frank789
F
M
A PDE solution: We define ϕ(x,r)=1nα(n)∫∂B(0,1)f(x+rz)dS(z)
mona123
Oct 9, 2018
Replies
0
Views
266
Oct 9, 2018
mona123
M
E
Need help solving Initial value problem: y' = (3x+2y) / (3x+2y-2) , where y(-1) = -1
entroqy
Oct 1, 2018
Replies
3
Views
509
Oct 2, 2018
MarkFL
R
Solving a Homogeneous Linear DE: dy/dx - 3y = 0
RD12
Sep 27, 2018
Replies
2
Views
622
Oct 2, 2018
HallsofIvy
H
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