Constant russell_tensor::IDENTITY2

source · 
pub const IDENTITY2: [f64; 9];
Expand description

Second-order identity tensor in Mandel basis (I)

Mandel vector:
      ┌   ┐
      │ 1 │
      │ 1 │
      │ 1 │
      │ 0 │
[I] = │ 0 │
      │ 0 │
      │ 0 │
      │ 0 │
      │ 0 │
      └   ┘