NaN

│ English (en) │ suomi (fi) │ русский (ru) │

NaN (not a number) is a numeric data type value representing an undefined or unrepresentable value. These values result from operations which have undefined numerical results. NaN is not the same as infinity.

program Project1;

begin
  Writeln (0/0);
  Readln;
end.

See also

• Value is Not a Number (fpc doc)
• TAChart_documentation#Skipping_source_items