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).
Pines are actually evergreen and/ or sticky trees yielding resins that usually grow up to a height of 80 meters. However, a small number of pine trees are shrubby growing up to three or more meters in height. Nevertheless, the standard height of most of the pine trees range between 15 and 45 meters.