User Manual

TI-83 Plus CATALOG, Strings, Hyperbolic Functions 492
inString(
inString(
returns the character position in
string
of the first character of
substring
.
string
can be a string or a string variable.
start
is an optional
character position at which to start the search; the default is 1.
inString(
string
,
substring
[
,
start
]
)
Note: If
string
does not contain
substring
, or
start
is greater than the length of
string
,
inString(
returns
0
.
length(
length(
returns the number of characters in
string
.
string
can be a string or
string variable.
Note: An instruction or function name, such as
sin(
or
cos(
, counts as one
character.
length(
string
)