Flashcards for Python lesson 2: Loops and remainders
Read the front, say the back to yourself, then open the card.
zip(a, b)
Pairs two sequences item by item: (a[0], b[0]), (a[1], b[1]), …
x % n
The remainder of x divided by n: 300 % 200 is 100.
plt.plot([x1, x2], [y1, y2])
A line from (x1, y1) to (x2, y2).
Envelope
The curve that every line of a family just touches: here, the cardioid.
Times k on a circle
A whole multiplier k draws a curve with k − 1 cusps.