User Manual - Page 496

For 83PL/TBL/1L1/A.

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TI-83 Plus CATALOG, Strings, Hyperbolic Functions 493
String
4
Equ(
String
4
Equ(
converts
string
into an equation and stores the equation to
Y
n
.
string
can be a string or string variable.
String
4
Equ(
is the inverse of
Equ
4
String(
.
String
4
Equ(
string
,Y
n
)
sub(
sub(
returns a string that is a subset of an existing
string
.
string
can be a
string or a string variable.
begin
is the position number of the first
character of the subset.
length
is the number of characters in the subset.
sub(
string
,
begin
,
length
)
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