Ciro Santilli @cirosantilli 37

1/N, given as "the default" in many sources:
$x_{n} = \frac{1}{N} \sum_{k = 0}^{N - 1} X_{k} e^{i 2 π \frac{kn}{N}}$
(1)
$1/ N$ , known as the "normalized DFT" by some sources: www.dsprelated.com/freebooks/mdft/Normalized_DFT.html, definition which we adopt:
$x_{n} = \frac{1}{N} \sum_{k = 0}^{N - 1} X_{k} e^{i 2 π \frac{kn}{N}}$
(2)

The

1/ N

is nicer mathematically as the inverse becomse more symmetric, and power is conserved between time and frequency domains.

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OurBigBook topic feature Updated 2025-07-16

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More info at: docs.ourbigbook.com#ourbigbook-web-topics

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just IMAGINE if... Updated 2025-07-16

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www.reading.ac.uk/just-imagine-if/

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bsub Updated 2025-07-16

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Submit a new job. The most important command!

Docs: www.ibm.com/docs/en/spectrum-lsf/10.1.0?topic=bsub-options

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Bitcoin IRC channel Updated 2025-07-16

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A lot of important development discussion happened in those channels: en.bitcoin.it/wiki/IRC_channels

At www.reddit.com/r/Bitcoin/comments/5pvp6m/is_there_a_log_for_the_bitcoin_irc_channel/ "Is there a log for the bitcoin IRC channel?" Luke Dashjr comments:

No, it is meant to be private without logging allowed.

User "midmagic" (TODO identify) then comments:

The #bitcoin channel on Freenode is "officially unlogged." That means we officially don't publish the logs anywhere, and if we find that logs are published somewhere, we ask that they be taken down

Some IRC logs were dumped into the Bitcoin blockchain at: IRC log dumps where they cannot be deleted.

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bitcoin.org Updated 2025-07-16

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bitcoin.org

Official Bitcoin domain registered by Satoshi Nakamoto.

Registration: 2008-08-18 by www.namecheap.com, an American company. But using a privacy oriented registrar: bitcoin.stackexchange.com/questions/89532/how-did-nakamoto-untraceably-pay-for-registering-bitcoin-org It is unknown how he could have paid anonymously, so it seems likely that the true identity could be obtained by law enforcement if needed.

First archive 2009-01-31: web.archive.org/web/20090131115053/http://bitcoin.org/ Also from the archive history web.archive.org/web/20100701000000*/bitcoin.org, things really started picking up on July 2010. This is almost certainly due to the opening of

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Bitcoin RPC command Updated 2025-07-16

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These are commands that e.g. the Bitcoin CLI client can make to the server.

bitcoincore.org/en/doc/22.0.0/rpc/rawtransactions/getrawtransaction/

The commands can be listed with:

bitcoin-core.cli help

and full help with:

bitcoin-core.cli help getrawtransaction

For example. to run the Bitcoin getrawtransaction command, first in one shell we start bitcoind:

bitcoin-core.daemon

and then on another shell:

bitcoin-core.cli getrawtransaction 75b431e0a8c4617ca8adefe593ba66aa30907742b6dc8772761bfe7edabd74b4 true

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github.com/giscus/giscus

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