The duplication theorem is iterated C until the variables are nearly equal, and the function is C then expanded in Taylor series to fifth order. Normal and reliable termination of the C routine. It is assumed that the requested C accuracy has been achieved. In addition to the truncation C error there will be round-off error, but in practice the C total error from both sources is usually less than the C amount given in the table.
P are unaltered.
Changes in the program may improve speed at the C expense of robustness. Removed unreferenced statement labels. Prologue converted to Version 4.0 format.