Excerpt from Map Projections
The scale of a map in a given direction at any point is the ratio which a short distance measured on the map bears to the corresponding distance upon the surface Of the Earth.
We must limit our definition to Mort distances because the scale of a map will generally vary from point to point; hence in defining scale we must confine ourselves to small elements of distance in the way which is familiar to every beginner in the differential calculus.
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HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LX-9780265510704
Cantidad disponible: 15 disponibles