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Feb
3
answered Evaluate $\lim_{x \rightarrow 1^+} (\ln\ x)^{x-1}$
Feb
3
revised Evaluate $\lim_{x \rightarrow 1^+} (\ln\ x)^{x-1}$
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Jan
31
revised $\frac {\partial}{\partial t}T$ vs $\frac d{dt} T$.
edited tags
Jan
31
comment Minimum cost linear programming problem formulation
Can you please show some work on the problem -- what will be the setup (source, sink vertices, graph structure, costs, how you will make the variables) and we will be happy to help clear up things you are not getting correctly. People here generally don't like doing your homework for you
Jan
31
comment A result of equation $y^2+1=x^p$ where $p$ is odd prime.
Here is perhaps a first step. If we assume for a second that $m$ is even, then $(-1)^k = (-1)^{m-k}$ and your LHS expression is really $$ \frac{1}{m!} \sum_{k=0}^m \binom{m}{k} k^m (-1)^{m-k} = \frac{1}{m!} \sum_{k=0}^m \binom{m}{k} (-k)^m $$
Jan
31
revised A result of equation $y^2+1=x^p$ where $p$ is odd prime.
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Jan
28
revised Quantization threshold selection
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Jan
28
revised Calculating y from given x of a curve
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Jan
28
revised Please solve this integral
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Jan
28
comment Chenge weight function in shifted orthogonality
@behmor67 you have to figure out which function to use to make the integral come out to $0$
Jan
27
answered Chenge weight function in shifted orthogonality
Jan
27
revised Chenge weight function in shifted orthogonality
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Jan
27
revised Find the derivative $y'_x$ from the equation $y^3 + x^2 = xe^{y^2} - y\sin x$
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Jan
27
comment Confidence Intervals
@adhok i am not sure it is ever valid. $x_{n+1}$ is independent of $x_1, \ldots, x_n$ as stated, and so is independent of $\Sigma_n = \sum_{k=1}^n x_k$. If you are given the distribution of $\Sigma_n$ for arbitrary $n$, you could derive from there if you needed.
Jan
26
revised Propositional Equivalence
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Jan
26
revised Probability mass function of the sum of the function of the sum of iid random variables
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Jan
26
comment Number of strings over a set $A$
@heyzuse direct counting, no combinations needed
Jan
26
revised Number of strings over a set $A$
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Jan
26
answered Number of strings over a set $A$
Jan
26
comment Expectation of a function of a normally distributed random variable
notation $r(\theta)$ is problematic - it denotes a function on the lhs of eqns 1 and 2, while inside the integrals you compute $(r-\theta)^2$ while integrating $dr$ -- what is the connection?