ptcon
- void ptcon(f_int n, f_float* d, f_float* e, f_float* anorm, f_float rcond, f_float* work, f_int info)
- void ptcon(f_int n, f_double* d, f_double* e, f_double* anorm, f_double rcond, f_double* work, f_int info)
- void ptcon(f_int n, f_float* d, f_cfloat* e, f_float* anorm, f_float rcond, f_float* rwork, f_int info)
- void ptcon(f_int n, f_double* d, f_cdouble* e, f_double* anorm, f_double rcond, f_double* rwork, f_int info)