Symbol in Linear Algebra

1.1k Views Asked by Bumbble Comm At 16 May 2026 - 6:24

I'm newbie in linear algebra and I do not understand the symbol that is selected with blue color.

What does this symbol means?
What is the purpose to use this symbol?
What context is this symbol being used?
Why do you use this symbol?

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There are 2 best solutions below

Bumbble Comm On 20 Jun 2015 - 7:37

it means

O is an element of S.

Bumbble Comm On 20 Jun 2015 - 9:48

When it says $\vec{0}\in S$ what it means is "The zero or null vector in the space $S$"