sec(x)
lim --------- = "infinite sex"
c --> 0 c^2

Fuller's Law of Cosmic Irreversability:

1 pot T --> 1 pot P
but
1 pot P -/-> 1 pot T

8 5
If lim - = oo (infinity), then what does lim - = ?
x->0 x x->0 x

f(xy) = f(x)f(y)

∂w
∂t
+
∂3w
∂x3 + 6¾w2 ∂w
∂x
= 0.
Modified Korteweg–de Vries equation.
1±. One solution on
solution for ¾ = 1:
w(x, t) = a + k2
p4a2 + k2 cosh z + 2a
, z = kx - (6a2k + k3)t + b,
where a, b, and k are arbitrary constants.
2±.
solution for ¾ = 1:
w(x, t) = 2 a1eµ1 + a2eµ2 + Aa2e2µ1+µ2 + Aa1eµ1+2µ2
1 + e2µ1 + e2µ2 + 2(1 - A)eµ1+µ2 + Ae2(µ1+µ2)...