The formula in 6.5 Matrix Functions, 6.5.1 General is confusing:

The bottom right value is a_{MN} - which is inconsistent with all the other values in the matrix, which are a_{N1} ... in the same column, and a_{1M} ... in the same row.

The text says:

"The elements of a matrix are denoted by the corresponding lower case letter and subscripts, which defines the row and column number."

See issue https://issues.oasis-open.org/browse/OFFICE-2642 for previous discussion, i believe this is the same chapter?

(Trivial additional typographical nit: there is a line break, not a paragraph break at the end of this sentence.)