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Sep
24
awarded  Autobiographer
Mar
20
accepted Notation for multiple of a number?
Mar
16
awarded  Critic
Mar
16
comment Notation for multiple of a number?
Old teachers, a couple of friends.
Mar
16
asked Notation for multiple of a number?
Oct
11
accepted Derivative of square of derivative?
Oct
10
comment Derivative of square of derivative?
Thanks for the answer!
Oct
10
comment Derivative of square of derivative?
The first one: $$\frac{d}{dy}\bigg(\frac{dy}{dx}\bigg)^2$$
Oct
10
awarded  Commentator
Oct
10
comment Derivative of square of derivative?
This is okay, but I wanted to get is $\frac{d}{dy}z$ not $\frac{d}{dx}z$
Oct
10
comment Derivative of square of derivative?
I have tried it, but when I try to integrate it can't seem to get the original expression.
Oct
10
asked Derivative of square of derivative?
Aug
5
accepted Help on differential equation $y''-2\sin y'+3y=\cos x$
Jul
23
comment Help on differential equation $y''-2\sin y'+3y=\cos x$
Yes, it is $-2\sin y'$
Jul
23
asked Help on differential equation $y''-2\sin y'+3y=\cos x$
Jul
20
revised Hypergeometric series
\sum instead of Sigma
Jul
20
suggested approved edit on Hypergeometric series
Jul
17
accepted Laplace transform of $ \int_1^\infty\frac{\cos t}{t}dt$
Jul
17
comment Laplace transform of $ \int_1^\infty\frac{\cos t}{t}dt$
ok, thanks. I just hope I don't have to solve the integral
Jul
17
awarded  Editor