This optional parameter in the PRINT and OUTPUT statement overrides the default print format for keyword.
This format can be specified in either of two ways:
Fw.d or Ew.d
The Fw.d format specifies writing the keyword value in decimal notation with a total field width of w characters and with d decimal places.
NOTE the decimal place itself takes one character in the width unless d=0. Note also that if the value is negative, the minus sign takes up one character in the field width. Thus d and w must satisfy the relation w > d+1 if d>0.
The Ew.d format specifies writing the keyword value in scientific notation with a total field width of w characters and with d decimal places.
NOTE: Since the decimal place, power notation and sign take up eight characters, the relation w-d >= 8 must hold. If it does not, the d value is truncated. If w is less than 8 the field is filled with '*'s to indicate more space is needed.