There are many ways of doing this... however a common way is using MAT Files.
a = rand(10);
b = rand(12);
save myMat a b
clear all
load myMat
Advantages of MAT Files: - this will work across platforms - can be optimised - one can compare mat files without loading them (great for version control) - one can store multiple variables and load only some of them - work across releases, and architectures - There is an open API via C to read/write them
Disadvantages: - they are not aimed for real-time applications
Other ideas (depending on what you are looking for): - UDP streaming - System Objects - CAN messages (see Vehicle Network Toolbox) - Reading/Writting to Databases (See Database Toolbox) - TCP/IP (see Instrument Control Toolbox) - Create Socket in MATLAB - Create COM Ports - Add your own library into MATLAB via C Mex
If you are looking for more ideas I would recommend reaching out to the Helpdesk of the MathWorks, as this may depend strong on your requirements.
