Function einsum 

pub fn einsum<T: EinsumScalar>(
    notation: &str,
    operands: Vec<NdOperand<'_>>,
) -> Result<ArrayD<T>>

Parse and evaluate an einsum expression on ndarray operands.

Returns the result as an owned ArrayD<T>.

Example

let c: ArrayD<f64> = einsum("ij,jk->ik", vec![(&a).into(), (&b).into()])?;