#define BZ_NEW_EXPRESSION_TEMPLATES#include <blitz/array.h>BZ_USING_NAMESPACE(blitz)double myFunction(double x){ return 1.0 / (1 + x); }double foobar(double x, double y){    return x*y;}BZ_DECLARE_FUNCTION(myFunction)BZ_DECLARE_FUNCTION2(foobar)int main(){    Array<double,2> A(4,4), B(4,4), C(4,4);    A = 0,  1,  2,  3,        4,  5,  6,  7,        8,  9, 10, 11,       12, 13, 14, 15;    C = 3;    cout << "A = " << A << endl         << "C = " << C << endl;    B = myFunction(A);    cout << "B = myFunction(A) = " << B << endl;    B = foobar(A,C);    cout << "B = foobar(A,C) = " << B << endl;    B = foobar(tensor::i, tensor::j);    cout << "B = foobar(tensor::i, tensor::j) = " << B << endl;}