Mat Input - IBM 5100 Basic Reference Manual

MAT INPUT array-name [(rows Lcolumnsl) J[.array-name[(rows [,columnsl )J] ...
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MAT INPUT
The MAT INPUT statement allows you to assign values to array elements from the
keyboard without specifying each array element individually. The MAT INPUT
statement can also be used to redimension arrays. The syntax of the statement is
as shown:
MAT INPUT array-name [(rows Lcolumnsl) J [.array-name [(rows Lcolumnsl )J] ...
where:
array-names are character or numeric arrays.
rows, columns are the dimensions of the arrays named. Only one array name is
required and rows, columns is optional.
When a MAT INPUT statement is executed, it causes a flashing question mark to be
displayed on line 1 of the display screen, and program execution is interrupted. You
must then enter a list of values that will be assigned row-by-rowto elements of the
specified arrays.
After each line of input (64 characters maximum) has been keyed, it must be
processed by pressing EXECUTE. If the array specified has not been filled, the
question mark is displayed again to indicate that more input is required.
Character constants that contain less than 18 characters are padded on the right
with blanks to a length of 18 before being assigned to the array element. Char-
acter constants that contain more than 18 characters a~e
truncated on the right
before being assigned. Character constants containing no characters (null) are
assigned as 18 blank characters.
Notes About MAT INPUT
• Each value entered must be of the same type (character or numeric) as the
corresponding array element.
• Each value entered must be separated from the next value by a comma.
• The last value entered on a line can be followed by a comma or a blank.
• If the number of data items entered exceeds the number of array elements
referred to, the excess data items are ignored.
• Blanks within numeric data items are ignored.
• Character data must be enclosed in single quotation marks.
•
If redimension specifications are included, the rules under Redimensioning
Arrays, Chapter 3, must be followed.