e1 – ColSpecF

public interface e1

Exponential integral $\mathrm{E}_1(x)$ or $\mathrm{E}_1(z)$ .

Module Procedures

private function e1x(x)

Exponential integral $\mathrm{E}_1(x)$ .

$\lbrace x \in \mathbb{R} \mid x \neq 0 \rbrace$

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=wp),	intent(in)			::	x

Return Value real(kind=wp)

private function e1z(z)

Exponential integral $\mathrm{E}_1(z)$ .

$z \in \mathbb{C} \setminus \left( \lbrace z \in \mathbb{C} \mid \Re(z) \lt 0, \thinspace 0 \lt |\Im(z)| \lt 10^{-6} \rbrace \cup \lbrace 0 \rbrace \right)$

Arguments

Type	Intent	Optional	Attributes		Name
complex(kind=wp),	intent(in)			::	z

e1 Interface

Contents

Module Procedures

public interface e1

Module Procedures

private function e1x(x)

Arguments

Return Value real(kind=wp)

private function e1z(z)

Arguments

Return Value complex(kind=wp)