edits from reader

[shiffman]

p. 101 - para 2 - "... can yield an nice ..." "an" should be "a"

p. 122 - Ex 3.7 = "... of a insect-like ..." "a" should be "an"

p. 145 - para 2 - "... that there are typical ..." What does this mean? "these" ?

p. 184 - code: render() - lifespan - what is this?

p. 218 - Exercise 5.4 - "... it must be concave" should say "convex"

p. 254 - final paragraph - "000 11 22" should say "000 11 2"

[shiffman]

all fixed