I'm not sure if TI BASIC has an "else" syntax. That wasn't in the original BASIC anyway. The way you did "else" in traditional BASIC was:
Originally Posted by Korkymann
It's been a while since I programmed a TI, but I think that's how you have to do it.
if condition then goto label1
EDIT: Or, for multiple chained if-else, you would do:
Structured programming -- now do you get why it's valuable?
if condition1 then goto label1
if condition2 then goto label2
if condition3 then goto label3