Integration differences between Windows version and Linux version of Octave

[Adrian Spiridon]

Hello there !

         I saw a difference btween Octave in Windows (v. 3.0.3) and Octave in Linux (v. 3.0.1). Suppose I want to integrate the function
f (x) =  1/(x^3-2*x-5) on the interval [0, 2]. I  write an M-file function myfun.m that computes
the integrand:

function y = myfun(x) 
y = 1./(x.^3-2*x-5);
endfunction

,and I use the quad function like this :Q = quad(@myfun,0,2)
    Using windows program the result is Q= -0.4605    --> CORRECT
    Using linux version the result is Q=   0.87910--> WRONG
    
   I have taken this example from the MATLABdocumentation siteso it is absolutely correct.

....what may be the reason ?

Regards,
Spiridon Adrian



      
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