COMPLEX

Assemblage of related things; colletion; complication. This parable of the wedding supper comprehends in it the whole complex of all the blessings and privileges exhibited by the gospel. South. Complex of lines (Geom.), all the possible straight lines in space being considered, the entire system of lines which satisfy a single relation constitute a complex; as, all the lines which meet a given curve make up a complex. The lines which satisfy two relations constitute a congruency of lines; as, the entire system of lines, each one of which meets two given surfaces, is a congruency.