# Casio fx-570ES PLUS User Manual: Matrix Calculations (matrix)

Casio calculator user's guide.

EQN Mode Calculation Examples
x
y
+ 2
= 3, 2
(EQN)
x
y
z
+
(EQN)
x
x
2
+
+
(EQN)
– 2 ' 2
x
2
(EQN)
x
x
3
2
– 2
(EQN)

## Matrix Calculations (MATRIX)

Use the MATRIX Mode to perform calculations involving matrices of up to 3
rows by 3 columns. To perform a matrix calculation, you first assign data to
special matrix variables (MatA, MatB, MatC), and then use the variables in
the calculation as shown in the example below.
To assign
1 1
the following calculations:
2 1
+
1 1
–1 2
x
y
+ 3
= 4
(a
X + b
n
x
y
z
= 2,
+
= 0, –
(a
X + b
n
1
1
1
3 = 0
4
2
(aX
+ bX + c = 0)
1
x
+ 2 = 0
(aX
2
+ bX + c = 0)
1
2
x
+ 2 = 0
3
(aX
+ bX
1
2
2 1
to MatA and
1 1
2 –1
(MatA+MatB)
Y = c
)
n
n
1
2
3
2
3
4
x
y
z
+
+
= 4
Y + c
Z = d
)
n
n
n
1
1
2
1
1
0
1
1
4
1
3
4
2
2
2
+ cX + d = 0)
1
2
2 –1
to MatB, and then perform
–1 2
2 1
2 –1
×
1 1
–1 2
E-29
(X
=)
1
(X
=)
2
(MatA×MatB),
Math
Math
(X=) –1
(Y=)
2
Math
Math
(X=) 1
(Y=) 2
(Z=) 3
' 2
1
+
i
2
2
' 2
1
i
2
2
'
(X=)
2
(X
=) –1
1
(X
=)
2
2
(X
=)
1
3

#### This manual also for:

Fx-991es plus

Symbols: 0
• nguyet nguyen Mar 28, 2017 11:59:
hi there
i dont understand the explanatio​n of quadratic regression​. i wanna get value coefficien​ts that you said to do shift+1(St​at)+5(Reg)​+1 to 6 but on my Fx 570es Plus, 5 is VEctor, not Reg.
• PERPEKTO Jan 14, 2015 06:22:
I CAN'T UNDERSTAND THE EXPLANATIO​N OF VECTOR CALCULATIO​NS
• MANI(PAKISTAN) Oct 13, 2014 07:45:
LOVE YOU FOR SUCH GREAT AND HELPFUL SITE.THANK​S