HP 49g+ - Manual (Page 707)

Page 21-62
Store this program in a variable
@@S3@@. Verify the following exercises: J
3 @@@S3@@ Result:
S:14
4 @@@S3@@ Result: S:30
5 @@@S3@@ Result:
S:55
8 @@@S3@@ Result: S:204
10 @@@S3@@ Result:
S:385
20 @@@S3@@ Result: S:2870
30 @@@S3@@ Result: S:9455 100 @@@S3@@ Result: S:338350
Example 3 – generate a list using a DO…UNTIL…END construct
Type in the following program
« → xs xe dx « xe xs – dx / ABS 1. + xs
→ n x « xs DO
‘x+dx’ EVAL DUP ‘x’ STO UNTIL ‘x
≥xe’ END n →LIST » » »
and store it in variable
@GLIS3.
• Check out that the program call 0.5 ` 2.5 ` 0.5 ` @GLIS3
produces the list {0.5 1. 1.5 2. 2.5}.
• To see step-by-step operation use the program DBUG for a short list, for
example:
J1 # 1.5 # 0.5 `
Enter parameters 1 1.5 0.5
[‘] @GLIS3 ` Enter the program name in level 1
„°LL @)@RUN@ @@DBG@ Start the debugger.
Use @SST↓@ to step into the program and see the detailed operation of each
command.
The WHILE construct
The general structure of this command is:
WHILE logical_statement REPEAT program_statements END
The WHILE statement will repeat the program_statements while
logical_statement
is true (non zero). If not, program control is passed to
the statement right after END. The program_statements must include a