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May
25
revised $y^2 = |\cos(\pi*x/2)|$ generates an infinite number of adjacent circles on the line $y = 0$.
Fixed link
May
25
suggested approved edit on $y^2 = |\cos(\pi*x/2)|$ generates an infinite number of adjacent circles on the line $y = 0$.
May
24
comment Problem on Straight lines
@Nancy, Note that $\frac{448}{805} = \frac{64}{115}$ and $\frac{-56}{805} = \frac{-8}{115}$.
May
16
revised Show that there are infinitely many primes $p$ of the form $p=a^2+b^2+c^2+1$
Formatted title
May
16
suggested approved edit on Show that there are infinitely many primes $p$ of the form $p=a^2+b^2+c^2+1$
May
5
comment Solutions of the Pell-type equation $x^2-2y^2=-1$
See also Pell's equation.
Apr
20
reviewed Reviewed Inclusions of $\ell^p$ and $L^p$ spaces
Apr
19
comment Inverse function.
$h(2) = 2-a/2$, not $2-2/a.$
Apr
18
revised Error in my proof?
Better tags
Apr
18
suggested approved edit on Error in my proof?
Apr
7
reviewed Reviewed Why does having a function within a function change the integral value?
Apr
7
revised How do I prove that $\arccos(x) + \arccos(-x)=\pi$ when $x \in [-1,1]$?
Title, formatting and tags
Apr
7
suggested approved edit on How do I prove that $\arccos(x) + \arccos(-x)=\pi$ when $x \in [-1,1]$?
Apr
5
awarded  Reviewer
Apr
5
reviewed Reviewed Combinations of Chebyshev polynomials and sin functions
Apr
5
reviewed Reviewed $a ∈ (Z/pZ)^*$ is called a cube if there exists $b ∈ (Z/pZ)^*$ such that $a = b^3$. If $p ≡ 2\pmod 3$, then all elements of $(Z/pZ)^*$ are cubes
Apr
3
revised A question about the $3n+1$ conjecture
Added collatz tag
Apr
3
suggested approved edit on A question about the $3n+1$ conjecture
Apr
3
reviewed Reviewed P(bowling a strike) = 70%. Expected number of trials until a perfect game? (10 strikes in a row)
Mar
26
reviewed Reviewed Prove that any finite non-empty set X has the same number of subsets of even size as it has subsets of odd size?