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