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Floating Point Modes – 2: Displaying Decimal Numbers, Fractions, Times, etc.
You
find
nearly
functions for floating
point
format
control
allocated to the top two
rows of keys on your
WP 34S.
1. For floating point decimal numbers, startup default allows displaying all digits as
long as they fit the display width; it will switch to SCIentific (i.e. mantissa plus exponent)
notation to avoid flowing over the display limits. This format is ALL 00, SCIOVR.
Besides ALL and SCI, there are two more numeric display formats, FIX and ENG. Their
effects can be most easily demonstrated and distinguished using an example:
Input
107.12345678
2
Within FIX, the radix mark will always stay at the FIXed position defined. The radix
mark floats in the other notations, where e.g. 1. 0 712
-3
would mean 18.67∙10
18. 6 70
V
always be a multiple of three corresponding to the unit prefixes in SI – thus it is called
the ENGineer's notation.
As soon as a number entry is completed, the mantissa will be displayed adjusted to the
right, the exponent to the left. Within the mantissa, either points or commas may be
selected as radix marks, and additional marks may be chosen to separate thousands.
Assume the display set to FIX 4 again. Key in 12345678
Without these separators (i.e. TSOFF), the same number will look like this:
29
These separators may also be beneficial in fraction mode described below.
WP 34S Owner's Manual
all
Format
107. 1 2345678
1. 8 6700472531
ALL 00
107. 1 235
- 2
-3
V
mV
= 18.67
. Within ENG, the exponent will
or
or
Edition 3.1
FIX 4
SCI 4
1. 0 712
0. 0 187
1. 8 670
2
represents 1.0712∙10
901
ENG 4
2
0
107. 1 2
- 2
-3
18. 6 70
2
, while
, and you get
29
with TSON
.
Page 40 of 211
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