Casio fx-991ES Calculator User Manual


 
E-10
k Initializing the Calculation Mode and Other
Settings
Performing the following procedure initializes the calculation mode
and other setup settings as shown below.
19(CLR)1(Setup)=(Yes)
This setting: Is initialized to this:
Calculation Mode COMP
Input/Output Format MthIO
Angle Unit Deg
Display Digits Norm1
Fraction Display Format d/c
Complex Number Format a+bi
Statistical Display OFF
Decimal Point Dot
•To cancel initialization without doing anything, press A(Cancel)
instead of =.
Inputting Expressions and
Values
k Inputting a Calculation Expression Using
Standard Format
Your calculator lets you input calculation expressions just as they
are written. Then simply press the = key to execute it. The calculator
automatically judges the calculation priority sequence for addition,
subtraction, multiplication, and division, functions, and parentheses.
Example: 2 (5 + 4) – 2 × (–3) =
LINE
2(5+4)-
2*y3=
Inputting a Function with Parenthesis
When you input any of the functions shown below, it is automatically
input with the open parenthesis (
(
) character. Next, you need to
input the argument and the closing parenthesis (
)
).
sin(, cos(, tan(, sin
–1
(, cos
–1
(, tan
–1
(, sinh(, cosh(, tanh(, sinh
–1
(,
cosh
–1
(, tanh
–1
(, log(, ln(, e^(, 10^(, '(,
3
'(, Abs(, Pol(, Rec(,
(, d/dx(, Σ(, P(, Q(, R(, arg(, Conjg(, Not(, Neg(, det(, Trn(, Rnd(