Scorpio News 
January–March 1987 – Volume 1. Issue 1 



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100 FORMAT(SHDATA. FROM,  ,10HBXPERIMENT,13) which would print out
DATA. FROM EXPERIMENT 1 (assuming that L had a value of 1)
P80 and Profortran recognite ten different types of I/O field descriptor: Alphanumeric [A – 2, 0 – 9 ete.)
Double precision numerse
Exponent form {e g 1 1606 = 11,000]
Floating poine [eg 12 34)
(cnn be used for floating point or exponent) Hollerieh (string)
alternative to Hoderith
Integer data [e g. 12, $60)
Logital [T(rue) c F(alee)] – not often used. optional scaling descriptor used with D.E,P and G conversions either ns a maltiple or # fraction blank space
cor)
These are fairly standard for most FORTRANS but NFortran does not have Double Precision or the scaling descriptor P. It does have T (tabulation), K (hexadecimal) and 2 (inhibit <erj1£> on output) which might be useful
Most users will only be concerned with A.£,P.H.1 and X descriptors: apart from the Wand Y descriptors, which have the general forms nll or nX where n is the umber of coluans each descriptor covers, the rest have the operational form c2y where © ig the suaber of repetitions of the field descriptor if this it grater than 1, Zap the descriptor type and y giver inforaation sbout the total width of field required For each repetition.
Some examples vould not come amiss here –
LOA indicates 10 alphanumeric fields each 4 columns vide
Fe’2 indicates 1 exponent field 8 columns wide, where there are two Higures after the decimal point This 12343.6) is represented Ss 012605 (where the” represents @ blank colunn ia which nothing ie printed)
B12 5 ie. a single exponent field of 12 columns in which 5 Figure Follow the decimal point and = figuee such ay –12.349678 would be cepresented ae 012303602 This implies thar the number As tfuncared (shortened) and loses some accuracy.
F320 shows that a floacing point number oceupying 3 coluans ig Involved which has no significant numbers to the cight of the Gecinal point, /.0 er 20 would be shows ia thie way
F8 4 Shows that the floating point (real) number occupies 6 coluant and has 4 digits to the right of the decimal point 123 4367 {2s suitable example: s real number such as’34 89085 would bbe ‘shown se 34 8909, ‘since the field only permits © teximum of 4 digite after the decimal point Overflow can occur if the umber of digits to the left of the decimal point cannot be Fitted Into the space avaliable – thus 12456 would be printed ar *56’ the esterisk shows that the field width was foo saall
413 indicates that there are four 3 digit integer fields involved; thus 121, 245, 778 and 200 ave repeesented as: 123249778200 while –30, 2, 45 and 559 are represented by –30” 2.43559.” In the latter case, the *” sign occupies 1 of the columns in its Eleld and the numbers with less than 3 digits are right jaseitsea
4X thie shows that 4 columns are to be skipped (not read or printed)
This is an OCR’d version of the scanned page and likely contains recognition errors.



Page 17 of 63 



