Advanced Analysis Library Only
double ExpIntegral (double x, int n);
Computes the exponential integral function, which is defined as follows:
| Input | ||
| Name | Type | Description |
| x | double-precision | The x variable in the exponential integral formula. |
| n | integer | The n variable in the exponential integral formula. |
| Name | Type | Description |
| result | double-precision | The value of the exponential integral function. |