# LaTeX

## Bridge to Accessible Mathematical Presentation

Presentation by Ameena Ghoston

**Our Needs**

- Accessible, general mechanism to communicate mathematical work in print
- A tool allowing users to focus on content and not presentation
- A tool that works with screen readers, Braille output devices and notetakers
- Low or zero cost
- Platform independent

**How does LaTeX Help the Blind?**

- Content not presentation
- What you type is what you get
- Does the formatting for you
- Doesn't need a fancy tool
- No accessibility concerns
- It's free!

**Being Fair : Drawbacks of LaTeX**

- Needs to be processed
- Learning curve
- Still needs some sighted review

**Examples: Basic Math**

$$\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$

**Examples : Words with Math**

Let $\mathbf{u}$,$\mathbf{v}$ and $\mathbf{w}$ be three vectors in ${\mathbf R}^3$. The volume~$V$ of the parallelepiped with corners at the points $\mathbf{0}$, $\mathbf{u}$, $\mathbf{v}$, $\mathbf{w}$, $\mathbf{u}+\mathbf{v}$, $\mathbf{u}+\mathbf{w}$, $\mathbf{v}+\mathbf{w}$ and $\mathbf{u}+\mathbf{v}+\mathbf{w}$ is given by the formula \[ V = (\mathbf{u} \times \mathbf{v}) \cdot \mathbf{w}.\]

**Examples : Higher Math**

$$ \left(\sum a_i^2\right)^{1/2} $$

\[

\Theta(s) = \int_0^\infty \theta(t)e^{-st}\,dt

= \mathcal{L} \{\theta(t)\}

\]

**Considerations: When To LaTeX**

- What hardware is available?
- What accessibility tools are available?
- Ability and Readiness of the user.