在Rust中使用einsum进行矩阵乘法

我想使用einsum将数组与随机数相乘。以下是我的实现的要点：

 use ndarray_einsum_beta::*;
 use ndarray::Array;
 use ndarray_rand::RandomExt;
 use ndarray_rand::rand_distr::Uniform;

 fn main() {
   let m1 = Array::random((100, 100), Uniform::new(0., 10.));
   let m2 = Array::random((100, 100), Uniform::new(0., 10.));

   let res = einsum("ij,jk->ik", &[&m1, &m2]);
 }

编译代码时，将抛出以下错误消息：

error[E0277]: the trait bound `ArrayBase<OwnedRepr<{float}>, Dim<[usize; 2]>>: ArrayLike<_>` is not satisfied
 --> src/main.rs:11:37
  |
11 |   let res = einsum("ij,jk->ik", &[&m1, &m2]);
  |                   ^^^ the trait `ArrayLike<_>` is not implemented for `ArrayBase<OwnedRepr<{float}>, Dim<[usize; 2]>>`
  |
  = note: required for the cast to the object type `dyn ArrayLike<_>`
error[E0277]: the trait bound `ArrayBase<OwnedRepr<{float}>, Dim<[usize; 2]>>: ArrayLike<_>` is not satisfied
 --> src/main.rs:11:42
  |
11 |   let res = einsum("ij,jk->ik", &[&m1, &m2]);
  |                      ^^^ the trait `ArrayLike<_>` is not implemented for `ArrayBase<OwnedRepr<{float}>, Dim<[usize; 2]>>`
  |
  = note: required for the cast to the object type `dyn ArrayLike<_>`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
error: could not compile `algebra_test`

---

您的

Cargo.toml

是什么样子的？你能把它的内容写在帖子里吗？它似乎不会在我这一方抛出错误

ndarray@0.15.1

，

ndarray\u einsum_beta@0.7.0

和

ndarray-rand@0.14.0

@Janson你完全正确。这是一个依赖性的问题。更改依赖项可以解决问题。很高兴听到！我投票以“不可复制”来结束这个问题，这样未来的读者就会明白这不是一个问题。祝你周末愉快。@Jason非常感谢你的帮助！祝你周末愉快！

[dependencies]
ndarray = "0.14"
ndarray_einsum_beta = "0.4.4"
ndarray-rand = "0.13.0"
rand = "0.8"