Hello,
To answer the first question, MATRIXx and LabVIEW are different products designed to do different things.
Additionally, the 4 parts of MATRIXx are not available separately, so I am not sure where you are seeing that they are different prices. If there is an error on this website, can you please post where this information came from so that we can correct this.
If the above documentation does not answer your questions, I suggest that you contact your local sales representative to determine which software best suits your needs. You can reach your sales representative by selecting the
Contact NI tab at the top of any ni.com webpage.
Best Regards,
Angela M