expint

Overloads

Name	Description
expint(integer x) -> real	Evaluates the exponential integral at the given position. The exponential integral is defined as:...
expint(real x) -> real	Evaluates the exponential integral at the given position. The exponential integral is defined as:...
expint(bool x) -> real	Evaluates the exponential integral at the given position. The exponential integral is defined as:...

expint(integer x) -> real

Evaluates the exponential integral at the given position. The exponential integral is defined as:

$$Ei(x) = -\int_{-x}^{\infty} \frac{e^{-t}}{t} dt$$

Parameters

• x: The value at which the function is evaluated.

expint(real x) -> real

Evaluates the exponential integral at the given position. The exponential integral is defined as:

$$Ei(x) = -\int_{-x}^{\infty} \frac{e^{-t}}{t} dt$$

Parameters

• x: The value at which the function is evaluated.

expint(bool x) -> real

Evaluates the exponential integral at the given position. The exponential integral is defined as:

$$Ei(x) = -\int_{-x}^{\infty} \frac{e^{-t}}{t} dt$$

Parameters

• x: The value at which the function is evaluated.