11 May 2025 08:12:58 PM quad2d(): C++ version Estimate the integral of f(x,y) over [0,1]x[0,1]. f(x,y) = 1 / ( 1 - x * y ). A = 0 B = 1 NX = 32768 NY = 32768 N = 1073741824 Exact = 1.644934066848226 Estimate = 1.644918809012695 Error = 1.525783553146809e-05 Time = 6.350401 quad2d(): Normal end of execution. 11 May 2025 08:13:04 PM