The Si command takes as argument a complex number.
Si returns the value of the sine integral function Si at
the point, where
Si(x) = | ∫ |
|
| dt |
This satisfies Si(0) = 0, Si(−∞) = −π/2 and Si(+∞)
= π/2. Also note that Si is an odd function.
Input:
Output:
Input:
Output: