As to why one uses pointers to pointers: 1  The name of an array usually yields the address of its first element. 2  Even though an array of strings sounds one-dimensional, it is in fact two-dimensional, since strings are character arrays. 3  A function f will need to accept an argument of type t ** if it is to alter a variable of type t *.
How to Use a Clinometer. A clinometer is used to measure angles. This is the method used by foresters to measure the height of a tree. The clinometer only works for measuring height when the observer is standing exactly one chain length away from the tree (66â or 100 links).
The cost of cutting the tree down will depend on the size of the tree, and what you consider to be large might be in a different category as far as the tree-cutting service is concerned. Although it can vary depending on the company, typically a large tree is 60 to 80 feet tall. A small tree is usually 30 feet tall or shorter, and a medium tree is commonly 30 to 60 feet in height. Anything over 80 feet tall is considered to be very large and, therefore, much more costly to remove.