Recieving error Index exceeds the number of array elements (98) when attempting to useODE45?

I get this error trying to run the 2 codes

And I don't know if this is written coreclty. It was taken from a 2008 Version.

I get only 98 elements in the t matrix and i have to find the 350th one.

Answer 1

[Fangjun Jiang]

t is 93x1 double, iM is 350. You try to access t(iM) which doe not exist. In other words, the index (iM, whose value is 350) exceeds the number of array elements (which is 93).

[Nuber Claudiu]

And what should I do? I have to make it work until tomorrow

[Nuber Claudiu]

I need the 350th element in the entire matrix so i need the 35th column on the 4th row element. That is my number. how should I write it so i wont get any errors?