Exponential Integrals and Related Functions
Routines
Evaluates the exponential integral, Ei(
x)
, EI Evaluates the exponential integral,
E1(
x)
, E1 Evaluates the scaled exponential integrals, integer order,
En(
x)
, ENE Evaluates the logarithmic integral, li(
x)
, ALI Evaluates the sine integral, Si(
x)
, SI Evaluates the cosine integral, Ci(
x)
, CI Evaluates the cosine integral (alternate definition)
, CIN Evaluates the hyperbolic sine integral, Shi(
x)
, SHI Evaluates the hyperbolic cosine integral, Chi(
x)
, CHI Evaluates the hyperbolic cosine integral (alternate definition)
, CINH 
