Appendix A: Functions and Instructions 787
dim() MATH/Matrix/Dimensions menu
dim(
list
) ⇒
integer
Returns the dimension of
list
.
dim({0,1,2})
¸ 3
dim(
matrix
) ⇒
list
Returns the dimensions of
matrix
as a two-element
list {rows, columns}.
dim([1,ë 1,2;ë 2,3,5])
¸ {2 3}
dim(
string
) ⇒
integer
Returns the number of characters contained in
character string
string
.
dim("Hello")
¸ 5
dim("Hello"&" there")
¸ 11
Disp CATALOG
Disp [
exprOrString1
] [,
exprOrString2
] ...
Displays the current contents of the Program I/O
screen. If one or more
exprOrString
is specified, each
expression or character string is displayed on a
separate line of the Program I/O screen.
An expression can include conversion operations
such as
4DD
and
4Rect
. You can also use the
4
operator to perform unit and number base
conversions.
If
Pretty Print = ON
, expressions are displayed in
pretty print.
From the Program I/O screen, you can press
‡
to
display the Home screen, or a program can use
DispHome
.
Disp "Hello"
¸ Hello
Disp cos(2.3)
¸ ë.666…
{1,2,3,4}! L1
¸
Disp L1
¸ {1 2 3 4}
Disp 180_min
4 _hr ¸ 3.ø_hr
Note: To type an underscore ( _ ), press:
@ ¥
q
H 2
q
To type
4
, press
2 p
.
DispG CATALOG
DispG
Displays the current contents of the Graph screen.
In function graphing mode:
Program segment:
©
:5ù cos(x)! y1(x)
:ë 10! xmin
:10! xmax
:ë 5! ymin
:5! ymax
:DispG
©
DispHome CATALOG
DispHome
Displays the current contents of the Home screen.
Program segment:
©
:Disp "The result is: ",xx
:Pause "Press Enter to quit"
:DispHome
:EndPrgm
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