Fortan90 Symbols

"What we consider here, is the use in the

FORMAT of the dollar symbol $ in order to remove the generation of a new
line (Line Feed/Carriage Return),"

http://www.urz.uni-heidelberg.de/Dok/Fortran90forF77.html

"By defining a new data type or operator, and overloading operations and
procedures (so that you can also use the plus + as the symbol of
addition of intervals and not only of ordinary numbers)"
http://www.urz.uni-heidelberg.de/Dok/Fortran90forF77.html