One diagram shows how a total solar eclipse works ... three key conditions happen at the same time: The moon is in the "new moon" phase; the moon crosses the plane of the Earth's orbit; and ...

This example illustrates the use of the TIMESCALE and ALIGN= options to draw time-scaled network diagrams. The Schedule data set WIDGUPD, produced by PROC CPM in the ...

The diagram below shows what will happen ... three key conditions happen at the same time: The moon is in the "new moon" phase; the moon crosses the plane of the Earth's orbit; and the moon ...