SHI _ _ _ _ _ _ _ _ _ _ _ _ operator

The Shi operator returns the hyperbolic Sine Integral function.

syntax:

examples:

df(shi(x),x); 

  sinh(x) / x 


on rounded; 

Shi(0.35); 

  0.352390716351

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