1. Azimuth:The angular distance to the foot of the vertical circle through a celestial body, measured from north around the observer’s horizon. Azimuth is 0° for an object due north, 90° due east, 180° due south, and 270° due west.
  2. Euclid: also known as Euclid of Alexandria. Was a Greek mathematician. His textbooks were the main teaching tool until the late 19th Century or 20th Century.      Eucilian Distance
    In mathematics, the Euclidean distance or Euclidean metric is the “ordinary” distance between two points that one would measure with a ruler, and is given by the Pythagorean formula. 
  3. In a right angled triangle:the square of the hypotenuse is equal to the sum of the squares of the other two sides.
  4. What is Map algebra? 
    The Map Algebra language provides building blocks that can be used individually or in conjunction with one another to solve problems. Also
    provides tools to perform operations; conditional statements; and local, focal, zonal, global, and application functions.
  5. Find suitable locations/Identify the best path between places/ Perform statsical analysis on locations/Iterpolate data values for study areas/Clean up data for further analysis/Perform distance and cost analysis.
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