First — in ‘ tarih.m’ you put ‘aytot’ without first defining it:
...
y2=input('year 2:');
aytot;
gunler=0;
...
so your code is going to throw this error:
Undefined function or variable 'aytot'.
Second — look up the eomday function and the other Date and Time Operations functions. It will make your problem much easier to solve.
