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location Russia
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visits member for 2 years, 9 months
seen Sep 10 at 4:31

My english is bad. Sorry.


Sep
28
awarded  Popular Question
Sep
24
awarded  Autobiographer
Aug
18
accepted Finite vs infinite dimensional vector spaces
Aug
4
awarded  Popular Question
Jul
11
accepted Frequency computation
Jul
11
revised Frequency computation
added 21 characters in body
Jul
11
comment Frequency computation
Thanks. I know about varying, but for my case it isn't critical, because fluctuations of pulse's appearing time is $\le 1/F$ (compared with exact frequency) , if I correctly understand this. Typical values: $N=10^9, F=1000$ Hz, $f$ is several hundreds Hz. This algorithm is based on DDS.
Jul
11
comment Frequency computation
Sorry, I had a mistake. Substract N, not S. And S<N. Example: N=1000, S=100, then f=F/10 (exact). Of course, most interesting is when S isn't a divisor of N.
Jul
11
revised Frequency computation
edited body
Jul
11
revised Frequency computation
deleted 1 character in body; edited title
Jul
11
revised Frequency computation
added 45 characters in body
Jul
11
asked Frequency computation
Jul
2
awarded  Curious
Jun
14
accepted Uniform closure of step maps
Jun
13
revised Uniform closure of step maps
added 235 characters in body
Jun
13
answered Uniform closure of step maps
Jun
11
revised Uniform closure of step maps
added 210 characters in body
Jun
11
asked Uniform closure of step maps
May
26
awarded  Quorum
May
11
comment When the inverse image of an *open* set is *closed*
Look this, for example.