// Example 1: Get the error for bin 5 in histogram h1 TH1D* h1 = new TH1D("h1", "Example Histogram", 10, 0, 10); double error = h1->GetBinError(5); // Example 2: Loop over all bins in histogram h2 and print the bin location and error TH1D* h2 = new TH1D("h2", "Another Example Histogram", 100, -5, 5); for (int i = 1; i <= h2->GetNbinsX(); i++) { double bin_center = h2->GetBinCenter(i); double bin_error = h2->GetBinError(i); std::cout << "Bin " << i << ": Center = " << bin_center << ", Error = " << bin_error << std::endl; }In Example 1, we create a new histogram h1 with 10 bins ranging from 0 to 10. We then get the error associated with bin 5 and store it in the variable error. In Example 2, we create a new histogram h2 with 100 bins ranging from -5 to 5. We then loop over all bins in the histogram and print out the bin center and error for each bin. Both examples use the GetBinError function to retrieve the error associated with a specific bin in the histogram. The TH1D class is part of the ROOT package library.