E – 11
File name : SR19-English.doc
vision : 2003/08/24
digits) after implied multiplication
with auto-correction.
To release the above errors, please press [ CL ] key.
2
Mode 0 - MAIN
2–1 Arithmetic
Calculations
z
Arithmetic operations are performed by pressing the keys in the
same sequence as in the expression. See Example 6.
z
For negative values, press [ (
−
) ] before entering the value. See
Example 7.
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For mixed arithmetic operations, multiplication and division are
given priority over addition and subtraction. See Example 8.
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Results greater than 10
10
or less than 10
-9
are displayed in
exponential form. See Example 9.
2–2 Display
formats
z
Decimal places formats are selected by pressing [ 2nd ] [ TAB ] to
display the menu. To set decimal places to
n
(
F0123456789
),
enter a
n
value directly or press [ ENTER ] key while the item is
underlined. (The default setting is floating point notation
F
and the
n
value is
•
). See Example 10.
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Even if the number of decimal places is specified, internal
calculation for a mantissa is performed in 14 digits for SRP-285
and 24 digits for SRP-280, and the display value is stored in 10
digits. To round off those values to the specified number of
decimal places, press [ 2nd ] [ RND ]. See Example 11.
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Number display formats are selected by pressing [ 2nd ]
[ SCI/ENG ] to display the menu. The items on the menu are
FLO
(for floating point),
SCI
( for scientific), and
ENG
(for engineering).
Press [
W
] or [
X
] until the desired formats is underlined, and then
press [ ENTER ]. See Example 12.
(Note) : The engineering format is similar to the scientific format,
except the mantissa can have up to three digits left of the
decimal, instead of only one, and the exponent is always
a multiple of three. It is useful for engineers to convert
units based on multiples of 10
3
.
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You can enter a number in mantissa and exponent form by [ EXP ]
key. See Example 13.
2–3 Parentheses
Calculation
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Operation inside parentheses are always executed first. SRP-280
can use up to 14 levels of consecutive parentheses in a single
