Quaternions in LaTeX

The LaTeX command for quaternions (ℍ) is \mathbb{H}.

\mathbb{H}

Number Sets · Unicode ℍ (U+210D) · needs amssymb

How to type Quaternions

Write \mathbb{H} inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. This symbol needs the amssymb package, so add \usepackage{amssymb} to your preamble.

Example

$x \in \mathbb{H}$

x \in \mathbb{H}

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Related Number Sets symbols

\mathbb{N}\mathbb{Z}\mathbb{Q}\mathbb{R}\mathbb{C}\mathbb{P}\mathbb{O}

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FAQ

How do you write quaternions (ℍ) in LaTeX?

Use \mathbb{H} in math mode after adding \usepackage{amssymb} to your preamble. For example, $x \in \mathbb{H}$.

Which package provides \mathbb{H}?

It comes from the amssymb package — add \usepackage{amssymb} to your preamble.

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