lapack exceptions - avram - a virtual machine code interpreter

Any of these functions can return a message of
```
          <'memory overflow'>
```
if it runs out of memory.
If the input parameters don't meet the specification, they can also return
```
          <'bad lapack specification'>
```
Any unexpected behavior from the LAPACK Fortran functions or irregular status returned by them is reported by the message
```
          <'lapack error'>
```
Getting to the bottom of it may require some debugging of the avram source code in the file lapack.c.