What is recursion?
A function that calls itself on a smaller version of the problem.
Also in C++ · Week 9
Lecture notes that revise themselves
Tallbook turns what you write in lectures into revision cards, and links each idea to where it came up before.
Free for three notebooks. No card needed.
What happens without a base case?
It never stops.
What is a base case?
The input small enough to answer directly.
What is a primary key?
A column that identifies each row.
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From lecture to revision without the copying out
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Write as you listen.
Plain text, headings and quick lists. No templates to fill in.
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Tallbook spots the ideas.
Each heading and each definition becomes a card with the question on the front.
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Revise for ten minutes a day.
Cards come back the day before you'd forget them, not all at once in exam week.
What it does with one page of notes
Recursion
A function that calls itself on a smaller version of the problem.
Needs a base case, or it never stops.
Base case
The input small enough to answer directly.
Built for the way modules overlap
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Links across modules.
Write "recursion" in Algorithms and Tallbook shows where you met it in C++ last term.
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Works offline.
Notes save on your laptop first and sync when the Wi-Fi comes back.
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Diagrams from text.
Type a list of steps and get a flowchart you can drag into place.
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Exam mode.
Pick a date and Tallbook only shows the cards you need before it.
Free to start, cheap to keep
Free
£0
Three notebooks, revision cards, works offline.
Student
£3 a month
Unlimited notebooks, diagrams, exam mode, sync across your devices.
Cancel any time from settings. Your notes stay yours and export as plain text.
Questions
Do I have to change how I take notes?
No. Write the way you already do. Headings and "X is Y" sentences make the best cards.
Can I bring my old notes?
Yes. Paste them in or import Markdown and Word files, and Tallbook makes cards from those too.
What happens to my notes if I stop paying?
You keep all of them. You go back to three active notebooks, and the rest become read-only.
Does it work for maths?
Yes, with LaTeX in notes and on cards.