In reading a value into a subscripted variable, the current value of the subscript expression is not affected by that READ statement. For example, in the statement
READ (I, A[I])
the old value of I is used in A[I].
The READ procedure will input data from the standard input medium only.
PAGE
The PAGE procedure is used to cause a page ejection on the standard output medium. PAGE has no parameters. It is called by simply writing
PAGE .
Lists and the List Declaration
The input and output procedures described in the rest of this section, as well as the binary read and write procedures, make use of the concept of a list. A list[1] is a sequence of expressions. An example is
U + V, C[0], if B then X else Y .