A Calculator Design for Conducting Mathematical Operations on Matrices

. . ( ) ( ) (Calculator) (Windows) . (Microsoft Visual Basic 6.0) (Object oriented programming) .The present work falls within the field of programming industry which is an important subject selected as suitable for all specializations, particularly mathematics . The subject of matrices and processes on such systems was ; therefore, chosen for investigation . The aim of this work is to design program easy for use by all users from various specializations without the need for a learning program.This designed program is similar from the view point of applying it on ordinary mathematical operations in numbers and as complementary from the viewpoint of applying it on matrices for the Calculator program within the different packages of windows operating systems . Which could be installed with the programs functioning under any kind of Windows operating systems . The language of Microsoft Visual basic 6.0 was used in the programming operation due to the great facilities provided by this language specially in the field of programming manufacture . This language is considered to be one of the superior programming languages which work under the graphic operation environment and based on object oriented programming .