for some reason, in one of my programs, whenever i use the sub( command, it doesnt seem to work. i cant use lists nor variables. the calc keeps on saying domain error no matter what i try. The string is 308 characters long and the numbers are never more than 308, so i dont see what could be going wrong. i used the same string and the same numbers on a different program, and it works perfectly. i know that the greek letters are not to blame, so what is???
also, when i typed in sub(Str0,L₁(X),1 and sub(Str0,X,1 it did not work on the homescreen
however,when i typed sub(Str0,L₁(1),1 and sub(Str0,1,1, it worked. what's wrong???
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