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| bio | website | |
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| location | ||
| age | ||
| visits | member for | 2 years |
| seen | Apr 11 at 21:18 | |
| stats | profile views | 32 |
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Mar 27 |
comment |
All natural numbers are equal. +1, very good explanation. The second case should be $b = k \cap 1 \le a \lt k$. |
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Dec 22 |
awarded | Yearling |
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Oct 29 |
comment |
Gaussian Kernels, Why are they full rank? If $K$ is a kernel then it is positive definite without any additional assumptions. If for any distinct $x_1, ..., x_m$ functions $K(., x_1), ..., K(., x_m)$ are linearly independent, then kernel $K$ is strictly positive definite. The converse is also true. |
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Oct 28 |
accepted | A property of a non strictly positive matrix |
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Oct 28 |
comment |
A property of a non strictly positive matrix (+1) Great answer, thank you. Just a little expansion. $x^t Q x \geq m > 0$ if and only if $Q$ is strictly positive definite. $x^t Q x \leq M < 0$ if and only if $Q$ is strictly negative definite. $m \leq 0 \leq M$ means that $Q$ is not strictly positive nor strictly negative definite. In this case it has been shown that there exists $c \neq 0$: $c^t Q c = 0$. |
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Oct 28 |
revised |
A property of a non strictly positive matrix improved notation |
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Oct 28 |
suggested | suggested edit on A property of a non strictly positive matrix |
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Oct 28 |
asked | A property of a non strictly positive matrix |
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Nov 23 |
revised |
Biological processes described by the exponential function added 123 characters in body |
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Nov 23 |
comment |
Biological processes described by the exponential function I'm still alive! |
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Nov 23 |
asked | Biological processes described by the exponential function |
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Aug 2 |
comment |
Mathematical description of a random sample @Didier, yes, the answer that I posted is good enough for me. I hope it may be helpful for other people as well. |
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Jul 31 |
awarded | Editor |
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Jul 31 |
revised |
Mathematical description of a random sample edited body |
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Jul 31 |
answered | Mathematical description of a random sample |
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Jul 30 |
comment |
Mathematical description of a random sample And then I have $X(t_1), X(t_2), ..., X(t_n)$ where $t_i \in \{\omega_1, ..., \omega_6\}$ |
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Jul 30 |
comment |
Mathematical description of a random sample $X: \{\omega_1, \omega_2, ..., \omega_6 \} \to \{1, 2, ..., 6\}$ |
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Jul 30 |
comment |
Mathematical description of a random sample @Didier, consider this example: I throw a die 10 times to get a sample of 10 integer numbers. Why should I consider this as 1 and not 2? If I throw 10 dice simultaneously to get 10 numbers, then I'm OK to consider this as 1. |
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Jul 30 |
awarded | Promoter |
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Jul 14 |
answered | Math Notes and Knowledge Organization Methodology |
