Sentence 1: If `` M '' is simplified ( that is , `` B '' = `` C '' = 0 ) , you can use the diagonal formula .
Sentence 2: If `` M '' is diagonal ( that is , `` B '' = `` C '' = 0 ) , one can use the simplified formula
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?