Nested Program Structures - HP -28S Manual

Nested Program Structures
Since a clause in a program structure is like a subprogram, the clause
itself can contain a program structure. The structure inside the clause
is called the
inner
structure, and the structure that contains the clause
is called the
outer
structure. The program HSORT (Sort a List)" on page
270 demonstrates nested definite loops.
There is no limit to the levels of nesting, except perhaps your ability
to understand the logic.
In
some cases it's easier to store the inner
structures in programs and use their names as clauses in the outer
structures.
26: Program Structures 233
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