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In number theory, σ is included in various divisor functions, especially the sigma function or sum-of-divisors function. In applied mathematics, σ (T) denotes the spectrum of a linear map T.

Format Mirrorless 61 DSLR 26 Mount L-Mount 62 Sony E 64 Canon RF 9 Nikon Z 3 Canon EF 26 Nikon F 25 Canon EF-M 3 Sigma SA 24 Sony A 3 Fujifilm X 10 Micro 4/3 3 Pentax 2 Sensor Coverage Full …

Oct 19, 2025 · “Sigma” describes someone who’s cool without trying. The word comes from the idea of a sigma male, which is someone who goes against the flow, or who plays by their own rules while still …

The official global site of camera & lens manufacturing company Sigma.Here you can find information about our company and our products, support, repairs and inspections, as well as news, updates, …

The Greek letter σ (sigma) is used in statistics to represent the standard deviation of a population. It also has various uses in other areas of math and science.

2 days ago · Sigma meaning slang explained: origin, usage, examples, social media meanings, and how people use sigma in modern online chats.

19 hours ago · RIO DE JANEIRO, Jan 15 (Reuters) - Brazil's Labor Ministry has ‌shut down three waste piles at Sigma ‌Lithium's flagship mine in the state of Minas Gerais, citing a "grave and imminent" risk ...

Just type, and your answer comes up live. Example: It is used like this: Sigma is fun to use, and can do many clever things.

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