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 Yearling
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19h
revised The probability that two matrix vector products are equal
added 87 characters in body
1d
accepted The differential equation $\frac{dy}{dx} +y^2 + \frac{x}{1-x}y = \frac{1}{1-x}$
2d
comment The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
Thank you for another approach!
2d
comment The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
Thank you for this.
2d
comment The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
Thank you very much!
2d
accepted The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
2d
comment The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
Is there a factor of $2$ missing? Should it be $\pm\sqrt{2x+Cx^2}$?
2d
revised The probability that two matrix vector products are equal
added 10 characters in body
2d
awarded  Yearling
2d
asked The probability that two matrix vector products are equal
2d
asked The differential equation $\frac{dy}{dx} +y^2 + \frac{x}{1-x}y = \frac{1}{1-x}$
2d
asked The differential equation $\frac{dy}{dx} = \frac{y}{x} - \frac{1}{y}\;$
Mar
27
awarded  Popular Question
Sep
6
comment Expected time to get from bottom left to top right in a square
Can you give any intuition for why it might be much quicker to get to the opposite corner than to some point in the middle of the side? This isn't obvious to me.
Jul
17
awarded  Curious
May
13
revised Why are two statements about a polynomial equivalent?
fixed brackets and fractions
May
13
suggested approved edit on Why are two statements about a polynomial equivalent?
May
13
comment Which vectors can give zero inner products forever
I expect this is obvious to an expert, but does this answer mean there are vectors $v$ other than the ones the OP listed or not?
Apr
21
awarded  Nice Question
Apr
3
comment Are the entries in matrix/vector product independent
Yes but your argument makes no reference to that. It would seem to apply equally to the $0,1$ case. What is it about $\pm 1$ that is making the difference?