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884 Appendix A: Functions and Instructions
Style CATALOG
Style
equanum,
stylePropertyString
Sets the system graphing function
equanum
in the
current graph mode to use the graphing property
stylePropertyString
.
equanum
must be an integer from 1–99 and the
function must already exist.
stylePropertyString
must be one of: "Line", "Dot",
"
Square", "Thick", "Animate", "Path",
"
Above", or "Below".
Note that in parametric graphing, only the
xt
half
of the pair contains the style information.
Valid style names vs. graphing mode:
Function: all styles
Parametric/Polar: line, dot, square, thick,
animate, path
Sequence: line, dot, square, thick
3D: none
Diff Equations: line, dot, square, thick,
animate, path
Note: Capitalization and blank spaces are
optional when entering
stylePropertyString
names.
Style 1,"thick" ¸ Done
Style 10,"path"
¸ Done
Note: In function graphing mode, these
examples set the style of
y1(x) to "Thick" and
y10(x) to "Path".
subMat() CATALOG
subMat(
matrix1
[,
startRow
] [,
startCol
] [,
endRow
]
[,
endCol
]) ⇒
⇒⇒
⇒
matrix
Returns the specified submatrix of
matrix1
.
Defaults:
startRow
=1,
startCol
=1,
endRow
=last
row,
endCol
=last column.
[1,2,3;4,5,6;7,8,9]! m1 ¸
1 2 3
4 5 6
7 8 9
subMat(m1,2,1,3,2)
¸
[
4 5
7 8
]
subMat(m1,2,2)
¸
[
5 6
8 9
]
Sum (Sigma) See G(), page 908.
sum() MATH/List menu
sum(
list
[
, start
[
, end
]]) ⇒
⇒⇒
⇒
expression
Returns the sum of the elements in
list
.
Start
and
end
are optional. They specify a range of
elements.
sum({1,2,3,4,5}) ¸ 15
sum({a,2a,3a})
¸ 6øa
sum(seq(n,n,1,10))
¸ 55
sum({1,3,5,7,9},3)
¸ 21
sum(
matrix1
[
, start
[
, end
]]) ⇒
⇒⇒
⇒
matrix
Returns a row vector containing the sums of the
elements in the columns in
matrix1
.
Start
and
end
are optional. They specify a range of
rows.
sum([1,2,3;4,5,6]) ¸ [5 7 9]
sum([1,2,3;4,5,6;7,8,9])
¸
[12 15 18]
sum([1,2,3;4,5,6;7,8,9],2,3)
¸
[11,13,15]