Errata for Picturing Programs -- 9

© Stephen Bloch 2010

Dec. 6, 2010

p. 82: At one point the dot-grid function was supposed to take in a third parameter, the color of the dots. I took that out in most places, but forgot to remove it here. Please ignore all references to the color parameter, and replace (circle 5 "solid" color) with (circle 5 "solid" "blue").