Page 11-31
−
−
−
−
=
4
3
14
1
2
4
1
2
3
6
4
2
aug
A
The matrix
A
aug
is the same as the original matrix A with a new row,
corresponding to the elements of the vector
b
, added (i.e., augmented) to the
right of the rightmost column of
A
.
Once the augmented matrix is put together, we can proceed to perform row
operations on it that will reduce the original A matrix into an upper-triangular
matrix. For this exercise, we will use the RPN mode (
H\
@@OK@@
), with
system flag 117 set to SOFT menu. In your calculator, use the following
keystrokes. First, enter the augmented matrix, and make an extra copy of the
same in the stack (This step is not necessary, except as an insurance that you
have an extra copy of the augmented matrix saved in case you make a
mistake in the forward elimination procedure that we are about to undertake.):
[[2,4,6,14],[3,-2,1,-3],[4,2,-1,-4]]
``
Save augmented matrix in variable AAUG:
³~~aaug~ K
With a copy of the augmented matrix in the stack, press
„´
@MATRX!
@ROW!
to activate the ROW operation menu. Next, perform the following row
operations on your augmented matrix.
Multiply row 1 by ½:
2Y 1
@RCI!
Multiply row 1 by –3 add it to row 2, replacing it:
3\ #
1
#2
@RCIJ!
Multiply row 1 by –4 add it to row 3, replacing it:
4\#1#3
@RCIJ!
Multiply row 2 by –1/8:
8\Y2
@RCI!
Multiply row 2 by 6 add it to row 3, replacing it:
6#2#3
@RCIJ!
Содержание 49g+
Страница 1: ...hp 49g graphing calculator user s guide H Edition 4 HP part number F2228 90006 ...
Страница 197: ...Page 5 30 LIN LNCOLLECT POWEREXPAND SIMPLIFY ...
Страница 377: ...Page 11 55 Function KER Function MKISOM ...
Страница 457: ...Page 13 26 In the right hand side figure above we are using the line editor to see the series expansion in detail ...
Страница 775: ...Page 26 10 the location of the backup battery in the top compartment at the back of the calculator ...
Страница 838: ...Page L 5 ...