] prints with all numbers in expr padded to leave room for a total of n digits.
] prints with approximate real numbers having exactly f digits to the right of the decimal point.
By default, PaddedForm pads with spaces on the left to leave room for n digits.
PaddedForm pads with zeros on the right in approximate real numbers.
The length n specified in PaddedForm counts only digits, and not signs, breaks between digits, and so on.
PaddedForm takes the same options as NumberForm, but with some defaults different.
You can use PaddedForm to align columns of numbers.
PaddedForm acts as a "wrapper", which affects printing, but not evaluation.
See the Mathematica book: Section 2.8.7.
See also: ColumnForm, TableForm.
This pads with spaces to make room for up to 7 digits in each integer.
This creates a column of integers.
This prints each number with room for a total of 7 digits, and with 4 digits to the right of the decimal point.
If you set the option SignPadding
True, Mathematica will insert leading spaces after the sign.
Only the mantissa portion is aligned when scientific notation is used.
This uses spaces instead of zeros for padding on the right.