eigenvalue problem



Hi,

On 09/08/2009 08:35 AM, Richard Fateman wrote:
> Richard Fateman wrote:
>    
>> Just because they have the symbol %i  in them does not mean they are
>> imaginary.
>> I tried
>> rectform(%);
>> %,numer;
>>
>> which shows the imaginary parts to be quite small.
>>
>>      
> if you type ratsimp(%)  instead of  %, numer,  the imaginary parts
> disappear.
>
>    
OK, I got fooled by doing float(%) on it, which I thought should have 
evaluated everything
but it did this approximately and hence the imag. parts were left 
there... I thought I did
ratsimp() on it but apparently not.

Thanks !


Jussi Eloranta