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Reading the display – Casio fx-991ES PLUS User Manual

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Reading the Display

The display of the calculator shows expressions you input, calculation results,
and various indicators.

Input expression

Indicators

Calculation result

• If a

indicator appears on the right side of the calculation result, it means

the displayed calculation result continues to the right. Use

C and B to

scroll the calculation result display.

• If a

E indicator appears on the right side of the input expression, it means

the displayed calculation continues to the right. Use

C and B to scroll the

input expression display. Note that if you want to scroll the input expression
while both the

and E indicators are displayed, you will need to press

first and then use

C and B to scroll.

Display indicators

This
indicator:

Means this:

S

The keypad has been shifted by pressing the

key. The

keypad will unshift and this indicator will disappear when
you press a key.

A

The alpha input mode has been entered by pressing the
key. The alpha input mode will be exited and this
indicator will disappear when you press a key.

M

There is a value stored in independent memory.

STO

The calculator is standing by for input of a variable name to
assign a value to the variable. This indicator appears after
you press

=(STO).

RCL

The calculator is standing by for input of a variable name to
recall the variable’s value. This indicator appears after you
press

=.

STAT

The calculator is in the STAT Mode.

CMPLX

The calculator is in the CMPLX Mode.

MAT

The calculator is in the MATRIX Mode.

VCT

The calculator is in the VECTOR Mode.

The default angle unit is degrees.

The default angle unit is radians.

The default angle unit is grads.

FIX

A fixed number of decimal places is in effect.

SCI

A fixed number of significant digits is in effect.

Math

Natural Display is selected as the display format.

>

Calculation history memory data is available and can be
replayed, or there is more data above/below the current
screen.

Math

Math

Math

Math

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