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rowSwap()
MATH/Matrix/Row ops menu
matrix1
rowSwap(
Returns
exchanged.
RplcPic
CATALOG
picVar
RplcPic
Clears the Graph screen and places picture
at pixel coordinates (
want to clear the screen, use
picVar
and
column
coordinates of the upper left corner of the picture.
Default coordinates are (0, 0).
Note: For less than full-screen pictures, only the
area affected by the new picture is cleared.
rref()
MATH/Matrix menu
matrix1
[
rref(
,
Returns the reduced row echelon form of
Optionally, any matrix element is treated as zero
if its absolute value is less than
is used only if the matrix has floating-point
entries and does not contain any symbolic
variables that have not been assigned a value.
Otherwise,
If you use ¥ ¸ or set the mode to
Exact/Approx=APPROXIMATE
are done using floating-point arithmetic.
If
tol
tolerance is calculated as:
ë 14 ù max(dim(
5
E
ù rowNorm(
Note: See also
sec()
MATH/Trig menu
expression1
sec(
) ⇒ ⇒ ⇒ ⇒
list1
list
sec(
Returns the secant of
containing the secants of all elements in
Note: The result is returned as a degree, gradian
or radian angle, according to the current angle
mode setting.
866
) ⇒ ⇒ ⇒ ⇒
rIndex1
rIndex2
,
,
with rows
matrix1
rIndex1
row
column
][
[,
,
]
,
row
column
must be a picture data type variable.
, if included, specify the pixel
) ⇒ ⇒ ⇒ ⇒
tol
matrix
]
is ignored.
tol
is omitted or not used, the default
matrix1
matrix1
)
.
ref()
) ⇒ ⇒ ⇒ ⇒
expression
expression1
matrix
and
rIndex2
picVar
). If you do not
.
RclPic
row
rref([ ë 2, ë 2,0, ë 6;1, ë 1,9, ë 9;
ë 5,2,4, ë 4]) ¸
.
matrix1
rref([a,b,x;c,d,y]) ¸
. This tolerance
tol
, computations
))
In Degree angle mode:
sec(45) ¸
or returns a list
list1
.
sec({1,2.3,4}) ¸
Appendix A: Functions and Instructions
[1,2;3,4;5,6] ! Mat ¸
rowSwap(Mat,1,3) ¸
{
1 2
3 4
5 6
5 6
3 4
1 2
1
0 0
66/71
147
0
1 0
71
0
0 1
ë 62/71
d ø x - b ø y
1 0
a ø d - b ø c
ë (c ø x - a ø y)
0 1
a ø d - b ø c
(2)
1
1
1.000...
}
cos(1)
cos(4)
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