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44
In addition, matrixes
X,
Y,
and Mare
stored
in
the same memory
area as BASIC
arrays
X(*,*),
Y(*.*),
and
M(*.*). Jn
other
words,
the
values
of
the matrix
elements entered
in
the
BASIC mode can be calculated
in the CAL mode.
When entering the
values of matrix
elements
in
the BASIC mode, pay
attention
to
the
following points:
(1) Matrix
elements
X(i,k)
correspond
to
BASIC
array
elements X(i-1,
k-1
).
For
example, X(1,2)
correspond
to
array
X(0,
1 ).
(2)
All the matrix
element values
stored
in
memory
will be
cleared by
BASIC
command
RUN,
CLEAR, or
NEW.
Input ot Matrix Element
In the CAL
mode,
pressing
ISHIFTI
rn
or
lsH1nl
rn
causes the
COMPUTER
to
enter the MATRIX
mode.
In
this mode,
you
can
enter the
elements of a
matrix
for
calculation of the
matrix, as
well
as to
have
the
computer perform
matrix operations
and
display the matrix elements
entered.
The keys and
their functions used
to enter and display matrix el
e
ments are
as
described
below.
With
this
computer,
such
an array is expressed
as
matrix
.X,
Y,
or M. One
of the sets
of
numbers
which
form a matrix is
called
a
matrix
element.
Matrix
element
a
11
is
expressed
as
X(1,1
),
Y(1,
1
),
or
M(1, 1 ).
The horizontal
arrangement
of matrix
elements is called a row while
the
vertical
arrangement is called
a
column.
Matrix Configuration
With the
COMPUTER,
three matrixes
X,
Y,
and M
can
be
defined.
Each
matrix
can be
defined within a range
of
1
to 99 both
vertically
(i.e., columns) and
horizontally
(i.e., rows).
However,
the
total
matrix size
is
dependent upon the memory capacity
of the
COMPUTER.
a,2
a,n
J
a22
a?n
am2
······ amn
A
matrix is a rectangular array
a;k
{i
=
1,
2
...
,
rn,
k
=
1,
2
..
.
,
n) of
a
given set of
numbers
(mxn elements) as shown
below.
In the
CAL mode, the COMPUTER has a
function
to
calculate matrixes
or their
determinant
values.
Matrix Calculation Function
Using as a Calculator
- Quick Links:
- Basic Commands
Hide quick links:
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