Initializing help system before first use

write, writeln

Purpose
Send an expression or list of expressions to the active output stream.
Synopsis
procedure write(e1:expr[, e2:expr...])
procedure writeln
procedure writeln(e1:expr[, e2:expr...])
Argument
e1, e2,... 
Expression or list of expressions
Example
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
Further information
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 (default formatting relies on parameters realfmt, zerotol and txtztol, see setparam). 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.
Related topics
fwrite, fwriteln, read, readln, strfmt, formattext.

Parent Topic Predefined functions and procedures

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