HP -67 Owner's Handbook Manual page 231

Using the I-Register for Indirect Control 227
on your HP-67:
Slide the W/PRGM-RUN switch wieraMm [lll[[[Jrun to RUN.
Press
Display
9.000000000 0
8.00000000 0
7.0000000 O
6.000000
5.00000
4.0000
3.000
9.000000000 0
8.00000000 0O
7.0000000 0
6.000000 0
5.00000
2.0000
3.000 00
7.0 00
9.000000000
8.00000000
7.0000000
6.000000
5.00000
4.0000
3.000
Scientific notation.
Engineering notation.
Fixed point notation.