Ring © 1980 Cursor Group, The.
Displays a ring that can be altered.
To make the ring thicker or thinner, change the value of 'N' (line 2). To make the ring larger or smaller, change the value of 'M' (line 20). 'M' must always be larger than 'N'.
Published in CURSOR, 1, no. 4 (April/May 1980): 31.
Programmer: Albert Paul
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