Function reference · Special functions
Ci
Computes the cosine integral.
Ci evaluates supported numeric inputs and preserves symbolic arguments. It is treated as even on the supported principal real form.
Ci(0) tends to negative infinity, while Ci approaches zero at positive or negative infinity.
Examples
These examples use Nerdamer Notation.
Use the singular value at the origin.
Ci(0) // → -Inf
Keep a symbolic cosine integral.
Ci(x)Interfaces
The same operation is available through the interfaces below.
Nerdamer Notation
Use this form inside input passed to nerdamer(...).
Ci(arg1)nerdamer.Ci
Call the operation through the default nerdamer import.
nerdamer.Ci(x: Expression): ExpressionParameters
| Name | Type | Description |
|---|---|---|
x | Expression | The input expression. |
Returns
Expression — The cosine integral value.