Two walls, not one
The language is the first wall. The second is the tradition: what is assumed known, which examples are used, how a proof is laid out.
Translation alone is not enough: a mathematics textbook from India translated word for word is still written for Indian students, in the habits of that school. Lecturized translates and simplifies in one step and keeps the notation, so the book becomes readable and understandable for someone outside that language and that tradition.
The language is the first wall. The second is the tradition: what is assumed known, which examples are used, how a proof is laid out.
A machine translation keeps the dense academic sentence it was given. You can now read every word and still not follow.
Translators treat formulas and symbols as text. A subscript lost is a theorem lost.
The chapter is told in your language at the level you choose, in one step, so it reads as if it had been written for you.
Formulas, symbols and names stay exactly as the author wrote them; only the words around them change.
What the author assumes from their school is said out loud, and the examples are brought closer to home.
Choose the language of the lectures; the book can be in any language the models read.
Level 3 if you know the subject and not the language; level 4 if both are new.
Every part says where it is in the original, for when you want the author’s own words.
Any language in, your language out; the first part in a few minutes.
Make the lecturesDrop your book here
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The same product, from where someone else stands.
No time to read, but time to listen. The book is retold so that it works by ear, formulas and tables included.
OpenFormulas and notation do not stick; pictures and a spoken explanation do. Every formula becomes a drawing and a plain sentence.
OpenInstead of whatever plays next at midnight: a calm, light telling of a book you actually care about.
OpenThe chapter you read twice and gave up on. A plainer telling first, then the original with context: comprehension, not replacement.
Open