A contour line of an element of two factors is a bend along which the capability has a consistent worth, so the bend joins points of equivalent worth.
Contour line is a plane part of the three-layered chart of the capability lined up with the plane. All the more by and large, a contour line for an element of two factors is a curve interfacing points where the capability has a similar specific worth.
In map making, a form line (frequently called a "shape") joins points of equivalent rise (level) over a given level, for example, mean ocean level. A contour map is a guide shown with shape lines, for instance a geological guide, which hence shows valleys and slopes, and the steepness or delicacy of inclines. The shape time period form map is the distinction in rise between progressive shape lines.
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