matten 0.15.3

A family car multidimensional array (tensor) library for small numerical trials / PoCs.
Documentation 
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//! Unary operators (RFC-006).

use crate::Tensor;
use std::ops::Neg;

impl Neg for &Tensor {
    type Output = Tensor;
    /// Negates every element.
    ///
    /// ```
    /// use matten::Tensor;
    /// let t = Tensor::new(vec![1.0, -2.0, 3.0], &[3]);
    /// let r = -&t;
    /// assert_eq!(r.as_slice(), &[-1.0, 2.0, -3.0]);
    /// ```
    fn neg(self) -> Tensor {
        #[cfg(feature = "dynamic")]
        if self.is_dynamic() {
            panic!(
                "matten unsupported error in neg: unary negation is not supported on dynamic tensors; call try_numeric() first"
            );
        }
        Tensor {
            data: self.data.iter().map(|&v| -v).collect(),
            shape: self.shape.clone(),
            #[cfg(feature = "dynamic")]
            dynamic: None,
        }
    }
}