[8.1] Convert integers to strings without extra characters 
[8.2]
String substitutions
[8.3] Creating strings that include quote characters
[8.4]
Count occurences of a character in a string
[8.5] string() uses the current number display format
[8.6]
Convert strings to upper- and lower-case
[8.7]
Replacement for mid() and right() functions use position instead of count
[8.8] Relational operators compare strings