The ES data edit descriptor transfers values by using scientific notation. It takes the following form:

ESw.d[Ee]

The value of *d* (the number of places after the decimal
point) plus *e* (the number of digits in the exponent) must
not exceed the value of *w* (the field width).

The specified I/O list item must be of type real, or it must be the real or imaginary part of a complex type.

On input, the ES data edit descriptor transfers *w*
characters from an external field and assigns their real value to
the corresponding I/O list item. The ES descriptor interprets and
assigns input data in the same way as the F data edit descriptor
(see Section 11.2.4.1).

The following shows input using the ES edit descriptor (the symbol ^ represents a nonprinting blank character):

Format Input ValueES11.3 ^^5.321E+00 5.32100 ES11.3 -6.000E-03 -.60000 ES12.3 ^^^3.150E-03 .00315 ES12.3 ^^^3.829E+03 3829.0

On output, the ES data edit descriptor transfers the real value
of the corresponding I/O list item, right-justified and rounded
to *d* decimal positions, to an external field that is
*w* characters long. The real value is output in scientific
notation, where the absolute value of the significand is greater
than or equal to 1 and less than 10 (unless the output value is
zero).

The *w* should be greater than or equal to *d*+7 to
allow for the following:

- A sign (optional if the value is positive and descriptor SP is not in effect)
- One digit to the left of the decimal point
- The decimal point
- The
*d*digits to the right of the decimal point - The exponent

The exponent takes one of the following forms:

Edit Descriptor | Absolute Value of Exponent | Positive Form of Exponent | Negative Form of Exponent |
---|---|---|---|

ESw.d | |exp| <= 99 | E+nn | E-nn |

99 < |exp| <= 999 | +nnn | -nnn | |

ESw.dEe | |exp| <= 10^{e} - 1 |
E+n_{1}n_{2}...n_{e} |
E-n_{1}n_{2}...n_{e} |

If the exponent value is too large to be converted into one of these forms, an error occurs.

The exponent field width (*e*) is optional; if omitted,
the default value is 2. If *e* is specified, the *w*
should be greater than or equal to *d*+*e*+5.

The following shows output using the ES edit descriptor (the symbol ^ represents a nonprinting blank character):

Format Value OutputES11.2 473214.356 ^^^4.73E+05 ES11.5 473214.356 4.73214E+05 ES12.3 0.00069 ^^^6.900E-04 ES10.3 -0.5555 -0.555E-01 ES11.2 0.0 ^0.000E+00

- On the form for data edit descriptors, see Section 11.2.1.
- On general rules for numeric editing, see Section 11.2.2.

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