How do you dictate math equations?

The practical answer is to dictate the sentences around an equation, and insert the equation itself with an equation editor or LaTeX. Say something like "the loss is the sum over all samples" and then add the formula at that point. Standard dictation can insert the symbols in an equation, but it cannot build the layout of most equations. For that, you need a specialist tool, and each one covers a different set of commands. Our guide to dictation for academic writing places this step in the wider drafting workflow.

Standard dictation inserts symbols, not equation structure

In Word, Microsoft's English command list for Dictate has a Mathematics group. These are a form of spoken punctuation. The list maps spoken phrases to symbols, such as plus sign to +, minus sign to -, multiplication sign to x, division sign to ÷ and equal sign to = ¹. Those commands let you insert a short expression on one line, such as "x plus sign y equal sign z". The Mathematics group has no entries for fractions or matrices, so those structures cannot be built from it.

On a Mac, Apple says that when you dictate text, you can use commands to enter punctuation, capital letters and symbols, including symbols for math and currency ². The symbol commands are useful for inline notation, but the same limit applies: you get the characters, not the layout that a fraction or an integral needs.

A dictated formula can also read correctly on the screen while having the wrong structure, for example a term that belongs in a superscript appearing at the baseline. Read each equation against its source line before you accept it.

Research systems can dictate equation structure, but the evidence is early

Research on speech to LaTeX is further ahead than the products. A 2025 preprint, Speech-to-LaTeX, reports results on two benchmarks. On the authors' own benchmark of spoken equations, its models beat the MathSpeech model by more than 36 percentage points ³. On the existing MathSpeech benchmark, its models reached a character error rate of 28 percent, against 30 percent for MathSpeech, which the authors describe as comparable ⁴.

A character error rate counts the wrong, missing and extra characters in the output, so a lower figure is better. The first result uses the authors' own benchmark, the second an existing one, and a preprint has not yet been through peer review. Treat the paper as evidence that the problem is being solved, not as a tool you can rely on for a submission.

Talon command sets dictate LaTeX, but check the editor they target

Talon is a hands-free input program, and community command sets extend it to mathematics. The mathfly-talon repository describes its Talon scripts as made for dictating mathematics into editors such as LyX and Scientific Notebook 5.5 ⁵. That matters if you write in Word or in a different LaTeX editor. The repository's description does not say the commands work there, and we did not install or test them, so their coverage in your editor is unknown until you try it.

A command set takes time to learn and to tune. For most researchers writing a single paper, the simpler method below is quicker to start with.

What to do for equations in a paper or thesis

1. Dictate the sentence, and mark the equation. Say the sentence in full, then add a placeholder such as [EQ1] at the point where the formula belongs.
2. Insert short symbols by voice. A single symbol, such as a plus or equal sign, can go straight in with a standard command.
3. Type anything with structure. Fractions, superscripts, matrices and numbered equations belong in your equation editor or LaTeX source.
4. Check each equation against its source. A recognizer that is nearly right on one symbol can change the meaning of the whole line.
5. Test before the deadline. If you want to use a specialist tool, try it on the equations in your own chapter, not on a sample, and count the corrections.

It depends on the field, the editor and how many equations you have

A thesis in mathematics or physics, with dozens of numbered equations, should be drafted with the keyboard for every equation and dictated only for the prose around them. An essay in the social sciences with one formula is a case where a spoken symbol is enough. The editor matters as much as the field. Word users depend on the built-in symbol commands, while LaTeX users may find a command set useful, but only after they have tested it against their own notation.

For the wider workflow, see our questions on whether you can dictate a thesis or dissertation and how you dictate citations and references. Our question on how researchers dictate field notes covers the other common case, where speech is captured in the field rather than at the desk.