5.3 Iterative Statements
while
assertion block end
- Repeats block while assertion is true.
for i = a to b { step c }
block end
- Repeats block while incrementing number i by c (default: 1),
from a to b. Numbers b and c are evaluated at each
step. Iteration ends as soon as i is greater than or smaller than
b, depending on the sign of c.
for P in s
block end
- Repeats block while point P runs through set s.
Example:
O = point(3,2)
H = hexagon(O, 3, 0°)
draw (H)
for P in H
draw O.P dotted
end