ZAHRA
fx-991EX
CLASSWIZ
S
A
STO
RCL
D
FIX
hyp
CPLX
STAT
0
Mode: COMP
1:
Calculate
2:
Complex
3:
Base-N
4:
Matrix
5:
Vector
6:
Statistics
7:
Table
8:
Equation
1: Calc
▼
1: Verif
Check expr
2: Simplify
Algebra
3: Expand
(a+b)²
4: Factor
x²-1
2: Complex
▼
1: abs
|a+bi|
2: arg
θ angle
3: conj
a-bi
4: Re
Real part
5: Im
Imag part
3: Calculus
▼
1: lim
x→a
2: ∫ₐᵇ
Definite
3: Σ
Sum k=a..b
4: d/dx
Derivative
5: d²/dx²
2nd deriv
4: Hyperbolic
▼
1: sinh
Hyp sine
2: cosh
Hyp cos
3: tanh
Hyp tan
4: sinh⁻¹
Arc sinh
5: cosh⁻¹
Arc cosh
6: tanh⁻¹
Arc tanh
5: Probability
▼
1: nPr
Permutation
2: nCr
Combination
3: n!
Factorial
4: Ran#
0≤r<1
5: RanInt
a≤r≤b
6: Number Theory
▼
1: gcd
GCD(a,b)
2: lcm
LCM(a,b)
3: mod
a mod b
4: isPrime
Check prime
5: factors
Prime fact
7: Format
▼
1: Fix
Decimal places
2: Sci
Scientific
3: Eng
Engineering
4: Norm
Reset format
8: Conversion
▼
1: mi→km
×1.60934
2: km→mi
÷1.60934
3: lb→kg
×0.453592
4: kg→lb
÷0.453592
5: °F→°C
(x-32)×5/9
6: °C→°F
x×9/5+32
7: deg→rad
×π/180
8: rad→deg
×180/π
STAT Menu
1: Single-Variable
▼
1:
Data Input
2:
n (count)
3:
x̄ (mean)
4:
Σx (sum)
5:
Σx² (sum sq)
6:
σx (pop std)
7:
sx (sample std)
8:
Med (median)
9:
minX
0:
maxX
2: Two-Variable
▼
1:
Data Input (x,y)
2:
y=a+bx (Linear)
3:
y=a+bx+cx² (Quad)
4:
y=a·e^(bx) (Exp)
5:
y=a·x^b (Power)
6:
r (correlation)
3: Regression
▼
1:
Calculate Reg
2:
a (coef)
3:
b (coef)
4:
c (coef)
5:
R² (coef det)
6:
ŷ (predict)
COMPLEX Menu
1: Calculation
▼
1:
a+bi (Rectangular)
2:
r∠θ (Polar)
3:
(a+bi)+(c+di)
4:
(a+bi)×(c+di)
2: Operations
▼
1:
abs (magnitude)
2:
arg (angle)
3:
conj (conjugate)
4:
Re (real part)
5:
Im (imag part)
3: Conversion
▼
1:
Rect → Polar
2:
Polar → Rect
BASE-N Menu
1: Number System
▼
1:
DEC (Decimal)
2:
HEX (Hexadecimal)
3:
BIN (Binary)
4:
OCT (Octal)
2: Conversion
▼
1:
DEC → HEX
2:
DEC → BIN
3:
DEC → OCT
4:
HEX → DEC
5:
BIN → DEC
6:
OCT → DEC
7:
Auto (detect base)
3: Logic Operations
▼
1:
AND
2:
OR
3:
XOR
4:
NOT
5:
NEG (two's complement)
MATRIX Menu
1: Matrix Input
▼
1:
2×2 Matrix
2:
3×3 Matrix
3:
m×n Matrix
2: Operations
▼
1:
det (determinant)
2:
Trn (transpose)
3:
A⁻¹ (inverse)
4:
A + B
5:
A - B
6:
A × B
7:
k × A
3: Analysis
▼
1:
tr (trace)
2:
‖A‖ (norm)
3:
rank
VECTOR Menu
1: Vector Input
▼
1:
2D Vector [x,y]
2:
3D Vector [x,y,z]
3:
N-D Vector
2: Operations
▼
1:
A·B (dot product)
2:
A×B (cross product)
3:
|A| (magnitude)
4:
 (unit vector)
5:
A + B
6:
A - B
7:
k·A
3: Analysis
▼
1:
θ (angle between)
2:
proj_B A
3:
d(A,B) (distance)
TABLE Menu
1: Function Table
▼
1:
Generate f(x) Table
2:
Set Range
3:
Set Step Size
4:
Export CSV
2: Parametric
▼
1:
x(t), y(t) Table
2:
r(θ) Table
3: Options
▼
1:
Grid View
2:
List View
3:
Clear Table
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D
cos
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nPr
4
MATRIX
5
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6
TABLE
÷
nCr
+
C.Stat
1
STAT
2
CMPLX
3
BASE
-
Pol
Ans
Rec
0
Rnd
.
Ran#
x10ˣ
π
e
=
FIX
X
≈