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Mathematics LibreTexts

A: List of Symbols

\(\epsilon\)    "Is an element of".

\(\sim\)    "Is equivalent to", see equivalence relations.  Also "is row equivalent to" for matrices.

\(\mathbb{R}\)    The real numbers.

\(I_{n}\)    The \(n \times n\) identity matrix.

\(P_{n}^{\mathbb{F}}\)    The vector space of polynomials of degree at most \(n\) with coeficients in the field \(\mathbb{F}\).

\(\mathbb{M}_{k}^{r}\)    The vector space of \(r \times k\) matrices.