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Jan
28
revised Tracking a vehicle moving with uniform velocity?
Copyediting
Jan
28
suggested approved edit on Tracking a vehicle moving with uniform velocity?
Nov
6
revised How to measure the angle of the tangent to an ellipse?
Added the explicit answer.
Nov
4
answered How to measure the angle of the tangent to an ellipse?
Oct
21
answered Do the derivatives of the Bessel functions of the first kind with integer order have any singularities?
Dec
15
awarded  Caucus
Oct
23
answered What is the inverse of $f(x)=\frac{e^x+e^{-x}}{e^x-e^{-x}}$?
Sep
22
comment How to write $a^{ix}$ in terms of $\sin(x)$ and $\cos(x)$?
$e^{\ln(a)}$ is single valued for $a \ne 0$.
Sep
20
comment How to write $a^{ix}$ in terms of $\sin(x)$ and $\cos(x)$?
$a=e^{\ln a}$ is true for negative values of a: $(a=e^{\ln a}, a\neq 0)$.
May
2
answered what will be the answer of this limit.
Apr
2
awarded  Informed
Dec
2
revised Can this gravitational field differential equation be solved, or does it not show what I intended?
corrected error in markup
Dec
2
suggested approved edit on Can this gravitational field differential equation be solved, or does it not show what I intended?
Sep
8
awarded  Yearling
Sep
2
answered What is the pattern to this sequence?
Jul
22
awarded  Citizen Patrol
Jul
18
reviewed No Action Needed Statistics formula for wifi positioning.
May
26
reviewed Reviewed Poisson point process convergence
May
26
suggested rejected edit on Poisson point process convergence
May
12
reviewed No Action Needed Solve $2^{2x} + 9e^{-2x} = 6$ for x using substitution.