KeithSmith
  • Member for 8 years, 11 months
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3 answers
40 votes
121k views
10 bookmarks
Is there an accepted symbol for irrational numbers?
5 answers
13 votes
24k views
2 bookmarks
What is the standard notation to represent the set of primes?
5 answers
8 votes
1k views
Does $(\{0,1\},*)$ form a group?
1 answers
3 votes
1k views
Do the tangents of two circles define concentric circles?
0 answers
3 votes
6k views
What does the superscript T refer to in the following equations regarding non-linear least squares curve fitting?
1 answers
2 votes
35 views
Question on Matrix Transform Operations
1 answers
2 votes
253 views
Does the infinite product $\prod_{n \mathop = 1}^\infty {\frac{2^n}{3^n}}$ diverge to zero or some other finite value.
1 answers
1 votes
1k views
What is the meaning of 'sup' in this equation
1 answers
1 votes
238 views
Is this absolute value notation or something else?
1 answers
1 votes
49 views
Is there a name for this set $\{x\in \mathbb{N}_{\geq 2}\mid x\neq ca^2b^3,\{a,b,c\in \mathbb{N}\mid a+b>2\}\}$?
2 answers
1 votes
74 views
Given $\{\log_ab \mid a,b\in \mathbb N, \mathrm{gcd}(a,b)=1,a,b≥3\}$ does the sum of any two $\log_ab$ form an irrational or rational number?
1 answers
1 votes
3k views
Is there a standard notation for the set of negative integers and zero?
1 answers
0 votes
1k views
Question about derivatives, Jacobian Matrix and non-linear least square curve fitting