CI _ _ _ _ _ _ _ _ _ _ _ _ operator

The Ci operator returns the Cosine Integral function.

syntax:

examples:

defint(cos(t)/t,t,x,infinity); 

  - ci (x) 


on rounded; 

Ci(0.35); 

  - 0.50307556932

The numeric values for the operator Ci are computed via t he power series representation, which limits the argument range.