Casio fx-100MS User Manual page 26

7. Press A to advance to the calculation screen, and perform the first
calculation (MatA × MatB): 14(MAT) 3(Mat) 1(A) *14
(MAT) 3(Mat) 2(B) =.
• This will display the MatAns screen with the calculation results.
Mat A×Mat B _
Note: "MatAns" stands for "Matrix Answer Memory". See "Matrix
Answer Memory" for more information.
8. Perform the next calculation (MatA+MatB): A14(MAT)
3(Mat) 1(A) +14(MAT) 3(Mat) 2(B) =.
Mat A×Mat B _
Matrix Answer Memory
Whenever the result of a calculation executed in the MAT Mode is a
matrix, the MatAns screen will appear with the result. The result also
will be assigned to a variable named "MatAns".
The MatAns variable can be used in calculations as described
below.
• To insert the MatAns variable into a calculation, perform the following
key operation: 14(MAT) 3(Mat) 4(Ans).
• Pressing any one of the following keys while the MatAns screen is
displayed will switch automatically to the calculation screen: +, -,
*, /, E, w, 1w(
MatAns variable followed by the operator or function for the key you
pressed.
Assigning and Editing Matrix Variable Data
Important: The following operations are not supported by the Matrix
Editor: m, 1m(M–), 1t(STO). Pol, Rec, and multi-statements
also cannot be input with the Matrix Editor.
To assign new data to a matrix variable:
1. Press 14(MAT) 1(Dim), and then, on the menu that appears,
select the matrix variable to which you want to assign data.
2. On the next menu that appears, input the dimensions.
3. Use the Matrix Editor that appears to input the elements of the
matrix.
To assign
2 2
14(MAT) 1(Dim) 3(C) 2 = 3 =
1 = 0 =- 1 = 0 =- 1 = 1 =
To edit the elements of a matrix variable:
1. Press 14(MAT) 2(Edit), and then, on the menu that appears,
select the matrix variable you want to edit.
Mat Ans
0.
Mat Ans
0.
x
3
1 0 –1
to MatC
0 –1 1
11
3.
11
4.
). The calculation screen will show the
E-25
Mat C Mat C
11 11
1. 1.