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KeithSmith
  • Member for 9 years, 6 months
  • Last seen more than a month ago
  • fernleaf07.blogspot.com
  • United States
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4 Bookmarks

Score Activity Newest Views Added
64 votes
7 answers
136k views

Is the sum and difference of two irrationals always irrational?

arithmetic rationality-testing
CommunityBot
  • 1
Aug 1, 2019 at 20:02
15 votes
3 answers
6k views

Is there a way of intuitively grasping the magnitude of Graham's number?

education big-numbers
Simply Beautiful Art
  • 72.1k
Mar 29, 2017 at 13:51
5 votes
2 answers
2k views

Convolution: Laplace vs Fourier

convolution
Paul Siegel
  • 8,607
Apr 6, 2013 at 16:12
9 votes
6 answers
2k views

What are the subsemigroups of $(\mathbb N,+)?$

elementary-number-theory semigroups
Tobias Kildetoft
  • 20.2k
Jun 29, 2012 at 9:47
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