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All questions asked by user3308243

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What is the point of smoothing an FFT or spectral density plot, and how does that affect the noise floor?

2   Signal Processing Asked on 09/27/2020

fft  noise  power spectral density  smoothing 

Matrix exponential of a positive matrix

1   Mathematics Asked on 12/05/2021

inequality  linear algebra  matrices  matrix exponential  positive matrices 

Rank of non-negative matrices

0   Mathematics Asked on 12/05/2021

adjacency matrix  matrices  matrix rank  nonnegative matrices 

Condition for the sum of two fractions to be irreducible

1   Mathematics Asked on 12/05/2021

divisibility  elementary number theory  gcd and lcm  number theory  prime numbers 

Solving Uni-variate Circular and Sine wave regression by Minimum Mean Square Error MMSE method

1   Mathematics Asked on 12/05/2021

computational mathematics  gradient descent  machine learning  regression  statistics 

Will high school competition math materials help me prepare for the Putnam?

1   Mathematics Asked on 12/05/2021

book recommendation  contest math  online resources  reference request  soft question 

$AD$ has exactly one negative eigenvalue if $v^T A v > 0$ and $D = mbox{diag}(-1,1,1)$

3   Mathematics Asked on 12/05/2021

eigenvalues eigenvectors  linear algebra  matrices 

Designing a Custom "Abbreviated Wheel" System for the Lottery

1   Mathematics Asked on 12/05/2021

combinatorics  lotteries 

What is the name for the distribution of values taken by a stochastic process?

0   Mathematics Asked on 12/05/2021

probability theory  stochastic processes  terminology 

On Hypergeometric Series and OEIS Sequence

1   Mathematics Asked on 12/05/2021

hypergeometric function  oeis  power series  reference request  sequences and series 

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