NAN of matrix

e(4957) gives NAN in my code ..EXP(OF SOME LARGE VALUE) GIVES NAN,...what 2 do ?

Answer 1

[Paulo Silva]

No e(4957) isn't exponential of that number, your e is a variable and you are calling the value at index 4957, exponential is done with the exp expression exp(4987) gives Inf

[Walter Roberson]

Or possibly e is a function instead of a variable. But it certainly isn't the same as exp() whatever it is.