Submittal of an algorithm for publication in one of the ACM Transactions implies that unrestricted use of the algorithm within a computer is permissible. General permission to copy and distribute the algorithm without fee is granted provided that the copies are not made or distributed for direct commercial advantage. The ACM copyright notice and the title of the publication and its date appear, and notice is given that copying is by permission of the Association for Computing Machinery. Krogh, F. Algorithms Policy. The value of one auxiliary parameters in can also be the value calculated.
P is always the cdf evaluated at X, and X is always the value at which the cdf is evaluated.
A return code of 2 indicates that the answer was apparently higher than the upper bound on the search interval. Other positive codes are routine specific. Those who don't care can find a summary of the bounds in cdflib.chs. Input bounds are checked for legality of input. The search range is the range of values searched for an answer.