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Lumyo files every note you write. Ask it a question and it answers from your notes, then shows you the exact line it used.
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Lecture 3: Recursion
Oct 14
Two parts, always: a base case and a smaller step.
factorial(0) = 1 stops the calls.
Exam: trace factorial(4) by hand, call by call.
Lab 2: Graphs
Oct 12
Adjacency list beats the matrix for sparse graphs.
Prof: you must explain BFS vs DFS on the final.
What will be on the algorithms exam?
You'll trace a recursive function by hand 1 and explain BFS versus DFS 2.
It's 2 AM, and the answer is somewhere in your notes.
02:00
Exam at 9. Forty pages of notes. Search finds the word, never the answer.
02:01
You ask Lumyo what will be on the exam.
02:01
It answers from Lecture 3 and Lab 2, and shows you both lines.
02:05
You go to sleep.
You write. Lumyo does the filing.
Rushed notes after a lecture, a call, a meeting. Lumyo reads each one, writes a two-line summary and puts it where it belongs.
Lecture 3: Recursion
Summary
Recursion needs a base case and a step that shrinks the problem. The exam asks for one traced example.
Every recursive function needs two parts:
- A base case that stops the calls
- A step that makes the input smaller
On the exam, trace factorial(4) call by call and show the stack.
- A summary on every note
- Two lines you can read before the meeting starts.
- A category picked for you
- Lectures, customers, projects. You never sort anything.
- Dictation when typing is slower
- Tap the mic, talk, and the text lands in the note.
- Your documents too
- Upload PDFs and slides and ask them, the same way you ask your notes.
A chatbot guesses.Lumyo shows its work.
What did we promise the client in March?
Teams usually agree on regular updates and a clear timeline. You may want to check your email or meeting notes.
No sources. It never read your notes.
What did we promise the client in March?
Weekly check-ins on Tuesdays 1 and a report draft by April 10 2.
1 Client meeting, Mar 42 Client follow-up, Mar 18
Lumyo only reads the notes you pick for each chat. When they don't cover your question, it tells you instead of making something up.
Tap a source. Land on the exact line.
Every answer links back to the note behind it. Tap the link and Lumyo opens that note, scrolled to the sentence it used and highlighted. On your phone, on the web, same notes.
Lecture 3: Recursion
Summary
Recursion needs a base case and a step that shrinks the problem. The exam asks for one traced example.
Every recursive function needs two parts:
- A base case that stops the calls
- A step that makes the input smaller
On the exam, trace factorial(4) call by call and show the stack.
Students ask about exams. Founders ask about customers.
Different questions, same rule: the answer comes from your notes, with the source.
- What will be on the algorithms exam?
- What did Priya say about yearly billing?
- Explain recursion using my Lecture 3 notes.
- Which customers asked for team seats?
- Which lab covered graph traversal?
- What did we decide before the board meeting?
- Summarize everything I wrote about the thesis method.
- What did Dan promise to ship this sprint?
- Which reading did the professor say to skip?
- What were the three objections on last week's calls?
A note from the founder
Lumyo started as my bachelor's thesis at the University of Craiova, with one question: could an AI answer only from the notes a student picks, and show where every answer came from?
The research behind it is now part of WISE 2026 AI4Good in Venice, and the app is close. If you have more notes than time to reread them, I'd like you to be one of the first people to try it.
Ask yournotes.
Coming to web, iOS and Android. Join the waitlist and we'll email you the day it opens.
