The phrase "in a matrix form" is correct and can be used in written English.
For example, you might say "This data can be represented in a matrix form to clearly show the relationships among the different variables."
Modeled in a matrix form, the CCHP system can be viewed as an input output model.
Then, the variation of energy functional is obtained in a matrix form.
And you can represent these kinds of relational systems in a matrix form like this, where the rows and columns represent the different objects in the domain.
In this paper a tracking controller expressed in terms of the quasi-velocities for rigid manipulators described by the Poincaré equations in a matrix form is proposed.
To present a lesson the RLO model was improved, being organized in a matrix form with five columns and three rows.
The stream-cost equations are arranged in a matrix form and solved to calculate the monetary cost of the process streams.
In a few cases, the Comptroller's office submitted shareholder proposals requesting proxy disclosure of gender and race/ethnicity, as well as skills, experience and attributes, of directors and nominees in a matrix form.
We later discovered that SolidWorks objects can be transferred to MATLAB, where they are presumably stored in a matrix form that could be susceptible to some form of boundary checking.
The longitudinal motion is assumed to take place independently and the equations of motion for the system are set up in a matrix form.
The multiscale asymptotic expansion method (MsAEM) up to any expansion order is formulated in a matrix form which is convenient for use as standard finite element method (FEM).
In the analysis the transformed equations for both electrical and mechanical systems have been expressed in a matrix form, and the solution has been determined directly by use of the residue theorem.
