This function says, “CHIINV uses an iterative search technique”. This is specifying an implementation, not a testable performance criterion. Other approaches should be permitted.
Keep the suggestions, but put them in informative Notes or Guidance.
CHIINV Part 4, Section 3.17.7.37
ed
Proposed Disposition of DIS 29500 Comment US-0278 (Modified: 2007-11-06) Agreed; the following changes will be made to Part 4, §3.17.7.37, page 2,564, lines 15 and 22: 3.17.7.37 CHIINV Description: Computes the inverse of the one-tailed probability of the chi-squared distribution. Given a value for probability, CHIINV seeks for a value x such that CHIDIST(x, degrees-freedom) = probability. Thus, precision of CHIINV depends on precision of CHIDIST. CHIINV uses an iterative search technique. … However, if probability < 0 or probability > 1, #NUM! is returned. degrees-freedom < 1 or degrees-freedom 10 10 , #NUM! is returned. An implementation uses an iterative search technique, and t T he search has not converged after some implementation-defined number of iterations, #N/A is returned Similar Comments: CL-0176 , CO-0169 , FR-0500 , GB-0381 ,
“Undefined concept” categorized.