condnb_atancond — Computes the condition number of the atan function.
[c,y] = condnb_atancond ( x )
a n-by-m matrix of doubles
a n-by-m matrix of doubles, the condition number
a n-by-m, matrix of doubles, the function values
Computes the condition number of the atan function. The atan function is well conditionned: it always has a condition number lower than 1.