HP HP-28S - Summary Statistics

Example. Switch to DEC base, display # 100 in all bases, and check
that BDISP restored the base to DEC.
Clear
the stack and select the BINARY menu .
.[ BINARY I 2:
• [ CLEAR I 13: 1
~mlllmJlm:lllimlmm
Make sure the current base is DEC and key in # 100.
DEC
rn 100 [ENTER I
3:
2:
1: # 100d
DmmlllmJIm:lllimlmm
Execute BDISP. (Don't switch menus, since you'll want to see the BI-
NARY menu in the next step.)
BDISP [ ENTER I
# 64h
# 100d
# 1440
# 1100100b
Return to the normal stack display and check the current base.
ION I 3:
2:
1: # 100d
DmmlllmJIm:lllimlmm
Although the main subprogram left the calculator in BIN base, PRE-
SERVE restored DEC base.
To check that BDISP also works for real numbers, try 144.
[USERI
# 90h
# 144d
# 2200
# 10010000b
144 BDISP
Summary Statistics
For paired-sample statistics it's often useful to calculate the sum of
the squares (2::x
2
and 2::y2) and the sum of the products (2::xy) of the
two variables. This section contains five programs:
262 28: Programming Examples