gsl_poly_solve_quadratic() -- question

Brian Gough bjg@network-theory.co.uk
Sun Feb 2 22:59:00 GMT 2003


Daniel Carrera writes:
 > Hello,
 > >From the manual:
 > 
 >   "If no real roots are found then x0 and x1 are not modified."
 > 
 > Isn't there a problem with this behaviour?
 > How is the programmer supposed to know if roots were not found, or if they 
 > were found but just happen to equal the initial values of x0 and x1?
 > 

The function returns the number of roots (either 0 or 2).

-- 
Brian Gough

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