Let A be a matrix:

```
A = array([[0.        , 0.        , 0.        , ..., 0.        , 0.        ,
    0.        ],
   [0.        , 0.28867513, 0.28867513, ..., 0.        , 0.        ,
    0.        ],
   [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
    0.        ],
   [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
    0.        ],
   [0.        , 0.13363062, 0.13363062, ..., 0.        , 0.        ,
    0.        ]])

B = array([0.70710678, 0.66666667, 0.5       , 0.75      , 1.        ])

```

I need to find the indexes of B in A.

Expected Output:

```
Matrix containing position of elements.

```

I want to perform this using inbuilt numpy commands/ logic and not using list comprehension or for loops.

Update: Already tried using isin, unable to tackle multiple elements with same value in the same row.

Updated with a better example of the problem.