If appears to the left of the symbol, it causes the result so far to be displayed. This may not be the result of evaluating the complete line as can occur anywhere on the line. The data is output together with a newline (carriage return) character, and is displayed subject to the values of printing precision (PP) and printing width (PW).
3+9-7 2 (The intermediate result of 9-7) 5 (The final result of 3+9-7) COST 28Χ5 (The result is put in COST but is also 140 displayed) CODE²'DEATHROW WORHTAED (Reversed 'DEATHROW' put in CODE and displayed. Note characters are accepted)