loading tool…
The LaTeX command for braket is \langle \phi | \psi \rangle — inner product (quantum mechanics).
\langle \phi | \psi \rangleWrite \langle \phi | \psi \rangle inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. It is part of core LaTeX math, so no extra package is required.
Prefer to see it live? Paste it into the LaTeX preview and it renders as you type — no compiler, no signup.
\hbar\nabla\nabla^2\nabla \cdot\nabla \times\partial\dot{x}\ddot{x}\langle \psi || \psi \rangle\rightleftharpoons\text{\AA}^\circ\text{C}\inftySearch all 380+ LaTeX symbols →
Use \langle \phi | \psi \rangle in math mode — it needs no extra package. For example, $\langle \phi | \psi \rangle$.
None — \langle \phi | \psi \rangle is built into LaTeX's math mode, so no extra package is required.