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//
// GENERATED FILE
//
use super::*;
use crate::SpiceContext;
use f2rust_std::*;
const THIRD: f64 = (1.0 / 3.0);
/// Double precision cube root
///
/// Return the cube root of a double precision number.
///
/// # Brief I/O
///
/// ```text
/// VARIABLE I/O DESCRIPTION
/// -------- --- --------------------------------------------------
/// X I Number whose cube root is desired.
///
/// The function returns the cube root of the input value.
/// ```
///
/// # Detailed Input
///
/// ```text
/// X is a double precision value.
/// ```
///
/// # Detailed Output
///
/// ```text
/// The function returns the cube root of the input value.
/// ```
///
/// # Exceptions
///
/// ```text
/// Error free.
/// ```
///
/// # Particulars
///
/// ```text
/// DCBRT calculates the cube root of the input value by using the
/// exponentiation operator to raise the input value to the 1/3
/// power. This operation, however, is performed on the absolute
/// value of the input variable, and then the sign of the input
/// is transferred to the output value.
///
/// All values of the input variable X should be acceptable to the
/// DCBRT.
/// ```
///
/// # Examples
///
/// ```text
/// The following table gives sample values of the variable X and
/// DCBRT(X)
///
/// X DCBRT(X)
/// --------------------------------------------------------------
/// 0.0D0 0.0D0
/// 8.0D0 2.0D0
/// -1.0D3 -1.0D1
/// ```
///
/// # Author and Institution
///
/// ```text
/// J. Diaz del Rio (ODC Space)
/// W.M. Owen (JPL)
/// W.L. Taber (JPL)
/// ```
///
/// # Version
///
/// ```text
/// - SPICELIB Version 1.1.0, 17-JUN-2021 (JDR)
///
/// Added IMPLICIT NONE statement.
///
/// Edited the header to comply with NAIF standard.
///
/// - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT)
///
/// Comment section for permuted index source lines was added
/// following the header.
///
/// - SPICELIB Version 1.0.0, 31-JAN-1990 (WMO)
/// ```
pub fn dcbrt(x: f64) -> f64 {
let ret = DCBRT(x);
ret
}
//$Procedure DCBRT ( Double precision cube root )
pub fn DCBRT(X: f64) -> f64 {
let mut DCBRT: f64 = 0.0;
//
DCBRT = f64::copysign(f64::powf(f64::abs(X), THIRD), X);
//
DCBRT
}