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Words nearby zenithal
Example sentences from the Web for zenithal
All round the horizon is built a black cloud-wall, but the zenithal heaven is clear.Hours of Exercise in the Alps|John Tyndall
It is clear that perspective and zenithal projections are particular groups of conical projections.
This gives either the group of conical projections with rectified meridians, or as a particular case the equidistant zenithal.
Of the above 25 projections, 23 are conical or quasi-conical, if zenithal and perspective projections be included.
It is obvious that all perspective projections are zenithal.