Send an expression or list of expressions to the active output stream.

The following lines

Set1:={"first", "second", "fifth"}
write(Set1)                   ! Print set contents without return
writeln                       ! Print an empty line
b:=true
writeln("A real:", strfmt(7.1234, 4, 2), ", a Boolean:",b)
	                      ! Output followed by return

produce this output:

{`first', `second', `fifth'}
A real:7.12, a Boolean:true

These procedures write the given expression or list of expressions to the active output stream. The procedure writeln adds the return character to the end of the output. Numbers may be formatted using function strfmt. Basic types are printed "as is". For elementary but non-basic types ( linctr, mpvar) only the address is printed. If the expression is a set or array, all its elements are printed.

fwrite, fwriteln, read, readln, strfmt.