The residual is the sum-of-squares of Fobs-Fcalc This indicates the number of the current point Click to interrupt the iteration; you can continue later on using Iterate/Continue This indicates whether the function value or a derivative is being calculated This indicates which window is currently being evaluated This indicates which solution is currently being iterated For the last cycle only, the residual is approximately the square of the area between the calculated and experimental spectra This indicates the number of the point (within the current cycle) This indicates the number of the current cycle and the correlation factor; the last cycle has correlation factor 0 Click to move on to the next iteration cycle Click to abort the iteration and restore the starting parameters Click to interrupt the iteration; you can continue later on using Iterate/Continue or Iterate/Last Cycle This window shows the progress of the iteration