/Advanced Level/Numerical Analysis/

The set of numbers in Scilab can be extended by adding %inf (infinity) and %nan (not a number). This is done with the Scilab function ieee:

 -->ieee()                   

 ans =0.

We see the default floating-point exception mode to be zero

   -->1/0                    

 !--error 27
 
 division by zero...
 

Let us now use the standard ieee floating-point exception mode:

 -->ieee(2)
 
 -->1/0                    
 
 ans =
 
 Inf

In this mode, 1/0 evaluates to infinity.

 -->0/0                     
 
 ans =
 
 Nan
 

In this mode, 0/0 also is handled gracefully.

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