"; echo "Increments between -200 and 200: ".$temp." "; echo "Celsius to Fahrenheit "; printf ("%-10s\n", $temp * 9) / 5 + 32; echo "Celsius to Kelvin "; printf ("%-10s\n", $temp + 273.15); echo "Fahrenheit to Celsius "; printf ("%-10s\n", $temp - 32) * 5 / 9; echo "Fahrenheit to Kelvin "; printf ("%-10s\n", $temp - 32) * 5 / 9 + 273.15; echo "Kelvin to Celsius "; printf ("%-10s\n", $temp - 273.15); echo "Kelvin to Fahrenheit "; printf ("%-10s\n", $temp - 273.15) * 9 / 5 + 32; ""; } ?>