HP Forums

How to use head and tail with strings inside a program?

It seems quite inconsistent:

Code:

HOME:

tail("hola"); // return empty matrix

head("hola"); // return the same string

Syntax error if used uppercades (with msgbox)

Code:

CAS:

tail("hola"); // correct

head("hola"); // correct

Weird error if used uppercased (no msgbox) but return:

of(["Error: Bad Argument Value"])

Inside a program it seems to work like as in HOME, with or without CAS. in front

It seems to be a small bug here.
I hope it will be fixed soon, but now we can use a workaround for strings:

Code:

CHAR(head(ASC("hola")));

CHAR(tail(ASC("hola")));

hello,

head and tail are CAS functions, so use of them for home/PPL stuff is "discouraged".

Assuming str contains your string, in home/PPL, str(1,1) will do a head and str(2,100000) a tail.

Cyrille

eried

komame

cyrille de brébisson