LaTeX Snippets (UltiSnips)

These snippets work in vimwiki files via ~/.vim/UltiSnips/vimwiki.snippets.

Trigger Key Configuration

By default, UltiSnips uses <Tab> to expand snippets. However, this can conflict with other plugins (like autocompletion). I use <C-l> instead.

To change your trigger key, add to your .vimrc:

" Change snippet expansion trigger (default is <Tab>)
let g:UltiSnipsExpandTrigger="<C-l>"
let g:UltiSnipsJumpForwardTrigger="<C-l>"
let g:UltiSnipsJumpBackwardTrigger="<C-h>"

Throughout this guide, when you see <Tab>, substitute your configured trigger key.

Snippet Inheritance Chain

vimwiki.snippets
    ├── extends math.snippets      (Greek letters, frac, brackets)
    ├── extends physics.snippets   (dots, vectors, bra-ket, ∂, etc.)
    └── extends texmath.snippets   (integrals, ∇ operators, sums)

markdown.snippets
    └── extends vimwiki.snippets   (all of the above)

Greek Letters

Trigger	Output	Trigger	Output
`;a`	`\alpha`	`;A`	-
`;b`	`\beta`	`;B`	-
`;g`	`\gamma`	`;G`	`\Gamma`
`;d`	`\delta`	`;D`	`\Delta`
`;e`	`\epsilon`	`;ve`	`\varepsilon`
`;th`	`\theta`	`;Th`	`\Theta`
`;l`	`\lambda`	`;L`	`\Lambda`
`;m`	`\mu`	`;n`	`\nu`
`;p`	`\pi`	`;P`	`\Pi`
`;r`	`\rho`	`;s`	`\sigma`
`;t`	`\tau`	`;ph`	`\phi`
`;ps`	`\psi`	`;Ps`	`\Psi`
`;w`	`\omega`	`;W`	`\Omega`
`;x`	`\xi`	`;X`	`\Xi`
`;ch`	`\chi`	`;S`	`\Sigma`

Math Structures

Trigger	Output	Description
`frac`	`\frac{a}{b}`	Fraction
`p`	`\left( \right)`	Parentheses
`b`	`\left[ \right]`	Brackets
`c`	`\left\{ \right\}`	Braces
`sum`	`\sum_{i}^{n}`	Summation
`prod`	`\prod_{i}^{n}`	Product
`int`	`\int_{a}^{b} f(x)\,dx`	Integral
`iint`	`\iint_{D}`	Double integral
`oint`	`\oint_{C}`	Contour integral

Physics

Trigger	Output	Description
`dot`	`\dot{x}`	Time derivative
`ddot`	`\ddot{x}`	Second time derivative
`vva`	`\vec{v}`	Vector (arrow)
`vvb`	`\bm{v}`	Vector (bold)
`uhat`	`\hat{n}`	Unit vector
`bra`	`\bra{\psi}`	Dirac bra
`ket`	`\ket{\psi}`	Dirac ket
`braket`	`\braket{\phi}{\psi}`	Bracket
`expv`	`\langle O \rangle`	Expectation value
`lag`	`\mathcal{L}`	Lagrangian
`ham`	`\mathcal{H}`	Hamiltonian
`pd`	`\partial`	Partial symbol
`pdd`	`\frac{\partial f}{\partial q}`	Partial derivative
`grad`	`\nabla f`	Gradient
`div`	`\nabla \cdot \bm{F}`	Divergence
`curl`	`\nabla \times \bm{F}`	Curl
`lap`	`\nabla^2 f`	Laplacian

Vimwiki-Specific

Trigger	Output	Description
`dm`	`$$ ... $$`	Display math block
`ali`	Aligned equations	Multi-line aligned
`cas`	Cases environment	Piecewise functions
`eql`	Eq. name: `$$ $$`	Labeled equation
`prob`	Full problem template	Given/Find/Solution/Answer
`EL`	Euler-Lagrange equation	Full equation
`schro`	Schrödinger equation	Full equation
`newton`	Newton's 2nd law	`\sum F = ma`
`[[`	`[[link]]`	Wiki link
`ref`	`[[research/literature/]]`	Literature link
`con`	`[[research/concepts/]]`	Concept link

Example Usage

Type this in a vimwiki file:

dm<Tab>
lag<Tab> = frac<Tab>1<Tab>2<Tab>m dot<Tab>q<Tab>^2 - V(q)

Expands to:

\[ \mathcal{L} = \frac{1}{2}m \dot{q}^2 - V(q) \]