Dear lapackers,

I'd like to discuss behavior of the functions (see Subject) when input matrix A contains NaN at some point.

It seems natural that the functions should return NaN for such input, but it isn’t.

For instance ?lange could return real value even through input matrix contains NaN or NaNs when input parameter NORM is equal to 'M' or 'm', '1', 'O' or 'o', 'I' or 'i'.

It'd be nice if the functions from the list defined above behave more predictable for faulty input data. Functions could return NaN when input matrix contains NaNs.