where:
name
A single-dimensional array
element
has the form:
name(j)
where:
name
is
the variable name of the array. The
na
me may
be
any type
of variable name.
is
the array index
to
that
element. On the
PET
the index i
must
start at
O.
A single-dimensional array called
A.
having five elements.
would
be
stored
as
follows:
A(O)
1-----1
A(l)
1-----1
A(2)
1-------1
A(3)
r-----i
A(4)
L..-
__
.......
The number of elements in the array
is
equal
to
the highest element number.
plus 1 to
count
array element
O.
A two-dimensional array element has the form:
name(i,j)
is
the variable name of the array.
It
may
be
any type of varia-
ble name.
is
the
column
index.
J
is
the row index.
A two-dimensional array called A$. having three column elements and
two
row elements.
would
appear
as
follows:
A$(O.O)
A$(O.l)
I-----f----i
A$(1.0) A$(1.1)
A$(2,O) A$(2,
1)
The size of the array
is
the product of the highest
row
element plus
1,
multiplied by the highest column element plus 1. For this array, it
is
3x2=6
ele-
ments.
Additional dimensions can be added to the array:
name (i,j,k,
...
)
70
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