ℤℤℤℚℚℚℝℝℝℂℂℂ
ℤℤℤℚℚℚℝℝℝℂℂℂ
N, Z, Q, R, C, H, O,
x
$\mathbb{N}$, $\mathbb{Z}$, $\mathbb{Q}$, $\mathbb{R}$, $\mathbb{C}$, $\mathbb{H}$, $\mathbb{O}$,
Arial Unicode MS Regular Geneva Menlo Regular STIXGeneral Regular Noto Sans ... goog