06-May-2023 16:27:20 quad2d_test(): MATLAB/Octave version 5.2.0 Test quad2d(). Estimate the integral of f(x,y) over [a,b]x[c,d]. f(x,y) = 1 / ( 1 - x * y ). using a 1024 x 1024 grid of 1048576 points. 0 <= x <= 1 0 <= y <= 1 Exact = 1.64493 Estimate = 1.64445 Error = 0.000487579 Time = 19.388980 quad2d_test(): Normal end of execution. 06-May-2023 16:27:39