Sharp EL-1801C - Manual (Page 5)

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Non-add — When this key is pressed right after an entry of a number in the Print
mode, the entry is printed on the left-hand side with “#”.
This key is used to print out numbers not subjects to calculation
such as code, date, etc
Subtotal — Used to get subtotal(s) of additions and/or subtractions. When
pressed following
+
or
–
, the subtotal is printed with “ ” and the
calculation may be continued.
CLEAR / CLEAR ENTRY KEY:
Clear — This key also serves as a clear key for the calculation register and
resets an error condition.
Clear entry — When pressed after a number and before a function, clear the
number.
TOTAL KEY:
When pressed after
+
or
–
, prints the total of addition and subtraction with “
∗
”.
EQUAL KEY:
Gives the results of multiplication and division and performs repeat calculation
with a constant.
Multiplication:
The calculator will automatically remember the first number entered (the
multiplicand) and
instruction.
Division:
The calculator will automatically remember the second number entered (the divisor)
and
instruction.
CHANGE SIGN KEY:
Changes the algebraic sign of a number (i.e., positive to negative or negative to
positive).
MARKUP KEY:
Used to perform mark-ups, percent change and automatic add-on/discount.
RECALL AND CLEAR MEMORY KEY
RECALL MEMORY KEY
STORE KEY:
This key is used to store the tax rate.
• A maximum of 4 digits can be stored (decimal point is not counted as a digit).
• Only one rate can be stored. If you enter a new rate, the previous rate will be
cleared.
C CE
MU
+ –
M
M
STR