equalarea

1.An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线表象为平行于赤道直线，经线表象为对称于中央直经线双曲线，且面没有变形投影集合，并得到一组概括公式。