More 2068 Graphics Help Authors Joel Brody Publication Timelinez Pub Details Volume: 2 Issue: 3 Date March 1984 Pages 23 Read the article See all articles from TimeLinez v2 n3 Mar 1984 Using trigonometric functions and filling spaces. Products Downloadable Media Related Articles Tags Timelinez, 1984, TS 2068, Tutorial, Type-in program People Joel Brody