The operation to concatenate vectors or matrices under MATLAB is defined as a combination of the variables in a single vector or matrix. There are two types of concatenation operation - horizontal and vertical concatenation. For horizontal concatenation,two variables should have the same number of rows. In case of vertical concatenation,two variables should have the same number of columns. Every available variable cannot be concatenated. Concatenation operations with multiple variables in MATLAB software are possible as well, as one vector can be concatenated with the transpose of the same vector. It is possible to concatenate vectors or matrices under MATLAB in a logical way.