returning "NaN" as results

2013 1 15

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Help!! I'm writing a code for Gauss Elimination Method, but my array of returned x(i) gives the result:

ans =

   NaN
   NaN
   NaN
   NaN
   NaN

I looked online but still can't find any useful solutions, does someone know any quick way of fixing this?

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Walter Roberson 2013-1-15

0 个投票

There is no quick way. You have an error at some unknown point in your code. You need to re-examine your code and debug it.

NaN would be produced if you had 0/0 or inf*0

I suggest that at the command prompt you type

dbstop if naninf

and run again. It will stop at the point the first NaN or Infinity is produced.

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