Manual

536 Programming in HP PPL
MID Syntax: MID(str,pos, [n])
Extracts n characters from string str starting at index pos.
n is optional, if not specified, extracts all the remainder of
the string.
Example: MID("MOMOGUMBO",3,5) returns
"MOGUM", MID("PUDGE",4) returns "GE"
ROTATE Syntax: ROTATE(str,n)
Permutation of characters in string str. If 0 <=n < DIM(str),
shifts n places to left. If –DIM(str) < n <= –1, shifts n spaces
to right. If n > DIM(str) or n < –DIM(str), returns str.
Examples:
ROTATE("12345",2) re t u r n s " 34512 "
ROTATE("12345",-1) returns "51234"
ROTATE("12345",6) returns "12345"
STRINGFROMID Syntax: STRINGFROMID(integer)
Returns, in the current language, the built-in string
associated in the internal string table with the specified
integer.
Examples:
STRINGFROMID(56) returns “Complex”
STRINGFROMID(202) returns “Real”
REPLACE Syntax: REPLACE(object
1
, start, object
2
)
Replaces part of object
1
with object
2
beginning at start.
The objects can be matrices, vectors, or stings.
Example:
REPLACE("12345",”3”,”99”) returns "12995"
Drawing
There are 10 built-in graphics variables in the HP Prime,
called G0–G9. G0 is always the current screen graphic.
G1 to G9 can be used to store temporary graphic objects
(called GROBs for short) when programming applications
that use graphics. They are temporary and thus cleared
when the calculator turns off.
Twenty-six functions can be used to modify graphics
variables. Thirteen of them work with Cartesian