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visits member for 2 years, 8 months
seen Sep 23 at 15:45

Sep
23
revised Proof of continuity of Thomae Function at irrationals.
minor formatting improvement
Sep
23
suggested suggested edit on Proof of continuity of Thomae Function at irrationals.
Sep
23
awarded  Excavator
Sep
23
revised Proof of continuity of Thomae Function at irrationals.
improved formatting
Sep
23
suggested suggested edit on Proof of continuity of Thomae Function at irrationals.
Sep
13
awarded  Notable Question
Sep
10
asked Etymology of the word “function” in mathematics
Jul
24
revised Asymptote of solution of a differential equation without solving it
added 22 characters in body
Jul
24
comment Asymptote of solution of a differential equation without solving it
Would be nice if you could make it more rigerous
Jul
24
awarded  Yearling
Jul
24
asked Asymptote of solution of a differential equation without solving it
Jul
2
awarded  Curious
May
9
comment Proof: Force always perpendicular and motion in a plane implies that the trajectory is a circle
@DanielV No I mean that the force which corresponds to $x''$ and $x'$ which corresponds to the velocity are perpendicular.
May
9
revised Proof: Force always perpendicular and motion in a plane implies that the trajectory is a circle
added 144 characters in body
May
9
asked Proof: Force always perpendicular and motion in a plane implies that the trajectory is a circle
Mar
22
asked Comic that makes clear that it might be a good idea to prove something…
Mar
15
comment Real world applications of exponential function; continous case
Well that's clear. The point is just that I cannot assume that students are familiar with $\mathrm{e}$.
Mar
15
comment Real world applications of exponential function; continous case
@mookid Yes but thats for the case $b < 1$, it's a decay. I know there are many interesting (quasi-)continous examples with $b < 1$, but I didn't know any really interesting examples for $b > 1$ which are not discrete.
Mar
15
asked Real world applications of exponential function; continous case
Oct
5
asked Visual proof ot the distributive property in $\mathbb{Z}$