D.8.3 harminv exceptions

Various exceptional conditions are possible with the harminv library interface, and one of the following messages could be returned. Each of them has the form of a list containing a single character string.

• unrecognized harminv function name is reported in case of a function call of the form library('harminv',f) where f is anything other than the character string 'hsolve', this being the only function in the library.
• bad harminv function call is reported if the input parameters don't meet the specifications described in harminv input parameters, or if fmin is greater than fmax.
• bad vector specification could be the result of a list of real numbers rather than complex numbers being passed as a signal. Real numbers can be converted to complex numbers using the create function from the complex library (complex).
• memory overflow can occur if avram is operating very close to the limit of host memory, or perhaps if infeasibly large values are passed as nf
• counter overflow is similar to a memory overflow