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Dec
9
revised Trick to find multiples mentally
added 1 characters in body
Dec
8
revised What is $\gneq$?
added 111 characters in body
Dec
8
asked Trick to find multiples mentally
Dec
8
asked What is $\gneq$?
Dec
1
awarded  Commentator
Dec
1
comment What would this curve be called?
No problem, my pleasure!
Dec
1
revised What would this curve be called?
edited body
Dec
1
answered What would this curve be called?
Nov
28
comment How can I prove this theorem about polynomials?
It looks like homework. Please add the "homework" tag if it is so.
Nov
21
accepted Why isn't a harp in a logarithmic shape?
Nov
10
asked Why isn't a harp in a logarithmic shape?
Nov
1
answered Universal binary operation and finite fields (ring)
Nov
1
comment Path from $(1,1)$ to $(4,4)$ with least number of lattice points within a certain distance
Maybe you should think of a better name for your question. This one is too vague.
Nov
1
comment Path from $(1,1)$ to $(4,4)$ with least number of lattice points within a certain distance
+1 for iterative thinking, I think it may be the only way to prove that: first from $(1;1)$ to $(2;2)$, then to $(3;3)$ and then to $(n;m)$
Oct
31
revised How to equally divide a circle with parallel lines?
It IS quite simple with a computer
Oct
31
comment How to equally divide a circle with parallel lines?
After integrating: $r^2 \cdot \arctan(\frac{\sqrt{v_i}}{\sqrt{2 \cdot r - v_i}}) - \frac{\sqrt{v_i} \cdot (r - v_i) \cdot \sqrt{2 \cdot r - v_i}}{2} = 1/2 \cdot \pi \cdot r^2 \cdot \frac{i}{n}$. (Of course, it may be easier to read with proper values for $r$, $i$ and $n$). Then, isolating $v_i$ is algebra I won't do it here.
Oct
31
comment How to solve $x\cdot\mathrm e^x=1$?
Thank you for this different approach. That was not at all what I was looking for, but +1 anyway, because I think it's cool and gives a good approximation of values.
Oct
31
comment How to equally divide a circle with parallel lines?
@TonyK intergate, keeping $v_i$ as a variable and then find $v_i$…
Oct
28
awarded  Teacher
Oct
28
revised How to equally divide a circle with parallel lines?
deleted 105 characters in body