SPIROGRAPH (ver unknown) Abandoned Freeware SPIROGRAPH will draw spirographs from your input, using the hypocycloid eqautions. See "SPIRO.DOC" for some numbers to input that will produce interesting drawings. Included is a demo that produces interesting spirographs. NOTE: SPIRO.BAS is the same as SPIRO.EXE, but being a traditional numbered-BASIC program, you can edit it to work in a different manner, then run it with GW-BASIC.