Function calcBeale

tests/testfn.h:195–199

	&calcRosenbrock, NULL };

static double calcBeale( const double* const x, const int N )
{
	return( sqr(1.5-x[0]+x[0]*x[1])+sqr(2.25-x[0]+x[0]*sqr(x[1]))+
		sqr(2.625-x[0]+x[0]*pow(x[1],3.0) ));
}

static const CTestFn TestFnBeale = { "Beale", 2, -10.0, 10.0, 0.0,
	&calcBeale, NULL };