Casio fx-85WA - Manual (Page 25)

E-23
Formula Memory
(fx-85W)
• Formula memor y lets you input a single formula in
memory, and then input values for the formula's variables
to calculate results.
• Memory can hold a single formula, up to 79 steps long.
This function can be used in the COMP mode only.
• Note that the formula is actually stored in memory when
you press the C key in the sequence below.
• Example: To save the following formula, recall it, and
then use it to calculate a result: Y = X 2 + 3X – 12
Input the formula.
p y p u p x K +
3 p x , 12
Y= X 2 + 3 X-12
0.
Store it in memory.
C
X?
0.
Input a value for its variable. 7
=
58.
=
X?
7.
8 =
76.
• Formula memory is cleared whenever you start a new
calculation, change to another mode, or turn off power.
Base- n Calculations
(fx-85W)
• In addition to decimal values, calculations can be per-
formed using binary, octal and hexadecimal values.
• You can specify the default number system to be ap-
plied to all input and displayed values, and the number
system for individual values you input.
• You cannot use scientific functions in binary, octal, deci-
mal, and hexadecimal calculations. You cannot input val-
ues that include decimal part and an exponent.
• If you input a value that includes a decimal part, the unit
automatically cuts off the decimal part.
• Negative binary, octal, and hexadecimal values are pro-
duced by taking the two's complement.