Grouping is spoken
Brackets become “the quantity…”, so you can hear where a fraction or a square root ends.
Equation demo · no sign-up
Hear how Aethel reads an equation.
Pick a formula or type your own. This runs the same speech engine the app uses for English narration, right here in your browser.
Unicode, plain text (x^2, a_i, sqrt(x)) and common LaTeX (\frac, \sqrt, \alpha) all work. Source: Vaswani et al., “Attention Is All You Need”, NeurIPS 2017, equation 1.
Aethel says
Attention of Q, K, V equals softmax of the quantity QK transpose over the square root of d sub k, times V
This browser has no built-in voice, so the demo shows the text only. In the app, narration uses studio or ElevenLabs voices.
Minus is not negative
“−b” is negative b; “a − b” is a minus b. Small difference, big difference in meaning.
Explained when you ask
In a book, tap any formula to ask what it means or for a worked example, read aloud too.
Curious about the rules? How equations are read aloud
Now hear a whole chapter.
Import a paper or textbook and listen with the equations read like this, figures described and every sentence highlighted. Five books and an hour of narration free.