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What did Siegel do? mean
Sign. It is the abbreviation of the English word signature, which means signature. Abbreviation sig It often appears in e-mails, official documents and other documents, and generally refers to the personalized signature added by the sender at the end of the text. This signature can include the sender's name, position, contact information, company name and other information, which is conducive to improving the formality and professionalism of the mail or document.

Except for mail and files, signature. It is also widely used in software development, network security and other fields. In the world of programmers, sig. Refers to the abbreviation of signal and is a way of communication between processes. In operating systems such as Linux, users can use the kill command to send a signal to a process, and the process will respond accordingly after receiving the specified signal.

In addition to the above purposes, sig. There are some extended uses, such as sigil, sigma, signal-to-interference ratio and so on. Among them, sigil is a magic symbol, which is often used in the fields of new magic and mysticism; Sigma is the18th letter in the Greek alphabet, which is often used as a symbol of sum in mathematics and physics. Signal-to-interference ratio is a representation of signal-to-noise ratio. Although these usages deviate from the original intention of sig. , all related to sig. For some reason.