Calculus

All levels of calculus from Calculus I through Differential Equations and beyond.
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Deriving the hypocycloid x^(2/3) + y^(2/3) = 1 formula
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0
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766
ysea
Y
Y
linear ODE: x^2 y'' + 5x y' + (4 - 4x) y = 0, x > 0
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1
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1K
HallsofIvy
H
G
alternating series: x - y/2 + x/3 - y/4 + x/5 - y/6 + ..., x,y > 0
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1
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879
tkhunny
tkhunny
G
Integral of a sigmoid equation: y= L / (1+EXP-(k(x-c)))
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4
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1K
Steven G
Steven G
Steven G
Is Lim (f*g) = lim f * lim g always true if all limits exists?
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7
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4K
Steven G
Steven G
S
area of semi-circle, negative answer
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9
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4K
sinx
S
I
Algebraic Dot Products! Find a dot b if a=i-2j+3k, b=2j-3k
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3
Views
978
HallsofIvy
H
F
Nothing like little Sunday morning series action! x s.t. sum{0,inf}x^(n)/n! converges
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4
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1K
Steven G
Steven G
B
Series Convergence Divergence: sum[n = 1, infty] [(n! ln(n)) / (n (n + 2)!)]
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4
Views
2K
tkhunny
tkhunny
J
Past exam question - help please...
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3
Views
1K
stapel
stapel
Z
Rotational stiffness of a plate - integration (timber & steel metal punched plate)
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1
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1K
HallsofIvy
H
M
Intermediate Value Theorem & F(x)=(x-7)(x-8)+ x^2: Find a<c<b proving F(c)=53
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2
Views
1K
Steven G
Steven G
K
Vector calculus: Flux: Flow of F=(xy+2xz, x^2+y^2, xy-z^2) through solid enclosed by
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1
Views
718
Deleted member 4993
D
N
Related Rates: right triangle w/ fixed base, incr. height; find change rate of angle
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2
Views
908
Steven G
Steven G
S
Calculating Flux: Let S be the surface of a solid $R$ , which lies inside the cylinde
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0
Views
743
sosoebot
S
C
Sum of a Convergent Series: sum [n = 1, infty] [(2 + n) / (1 - 2n)]
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2
Views
850
tkhunny
tkhunny
L
de l'hospital rule for two variable function
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1
Views
823
tkhunny
tkhunny
G
differentiate: (cos(pi*t))(sin(20*pi*t))
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4
Views
1K
sinx
S
S
Line Integral of a vector Field
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2
Views
1K
Steven G
Steven G
B
Step-by-step soln for 9/[2(x+1)] + 1/[x-1] = [x+1]/[2(x-1)]
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8
Views
2K
stapel
stapel
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