Expr, Instring – Texas Instruments TI-84 User Manual

Page 422

Chapter 15: CATALOG, Strings, Hyperbolic Functions

419

expr(

expr(

converts the character string contained in

string

to an expression and executes it.

string

can be a string or a string variable.

expr(string)

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:

string

does not contain

substring

, or

start

is greater than the length of

string

inString(

returns