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Casio FX991ES Manual

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Using Calculator Memory
Memory Name Description
Answer Memory Stores the last calculation result obtained.
Calculation results can be added to or sub-
Independent tracted from independent memory. The “M”
Memory display indicator indicates data in independent
memory.
Variables
Six variables named A, B, C, D, X, and Y can
be used for storage of individual values.
This section uses the COMP Mode (N1) to demonstrate how
you can use memory.
k Answer Memory (Ans)
Answer Memory Overview
•Answer Memory contents are updated whenever you execute a
calculation using any one of the following keys: =, 1=, m,
1m(M –), t, 1t(STO). Answer Memory can hold up to
15 digits.
•Answer Memory contents are not change if an error occurs during
the current calculation.
•Answer Memory contents are maintained even if you press the
A key, change the calculation mode, or turn off the calculator.
• If a CMPLX Mode calculation produces a complex number result,
both the real part and imaginary part are stored in Answer Memory.
In this case, however, the imaginary part will be cleared from
Answer Memory if you change to another calculation mode.
Using Answer Memory to Perform a Series of
Calculations
Example: To divide the result of 3 × 4 by 30
LINE
3*4=
(Continuing)/30=
Pressing / automatically inputs
“Ans” command.
•With the above procedure, you need to perform the second
calculation immediately after the first one. If you need to recall
Answer Memory contents after pressing A, press the G key.
… 27 …


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Others manual(s) of Casio FX991ES

Casio FX991ES Quick start guide - German - 12 pages

Casio FX991ES User Manual - German - 88 pages

Casio FX991ES User Manual - Dutch - 46 pages

Casio FX991ES User Manual - French - 77 pages


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