nerdamer.asec(x: ExpressionInput): Expression
Computes the arcsecant (inverse secant) of an expression:
`asec(x) = acos(1/x)`
.
At infinity:
`asec(±∞) = π/2`
.
Parameters
| Name | Type | Description |
|---|
x | ExpressionInput | The input expression (domain `|x| ≥ 1` for real results). |
Returns
Expression — The arcsecant of `x` in radians.
Examples
asec(1).text() // "0"
asec(2).text() // "1/3*pi"
// Symbolic
asec('x').text() // "asec(x)"