Matrices are tools to solve linear equations. Engineers use matrices in solving electrical problems in circuits using Thevenin's and Norton's theories.
Matrices were used to organize data.
Matrices can be used to collect data. They can also be used in cryptography--the practice and study of hiding information.
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Let me correct you: two-dimensional arrays are used in programming to represent matrices. (Matrices are objects of mathematics, arrays are objects of programming.)
The method must be of pretty high quality if it can be used for a variety of matrices.
Matrices are one of the easiest things you learn in Algebra II but there is no point of the matrix after high school.
I'm not trying to be a smart-alec but school is real life. If you are learning about matrices in school that is part of your real life. Later in life I don't have a clue what profession you will have. You may or may not use matrices later that depends on your choices.
No. For example, linear algebra, for example, is about linear equations where the domain and range are matrices, not simple numbers. These matrices may themselves contain numbers that are real or complex so that not only is the range not the real numbers, but it is not based on real numbers either.
A prime example of matrices (plural) being used in computers if in computer graphics and rendering where matrices are used in 3D work for transformations like rotation, scaling and translations. Although I'm sure there are plenty more fields in computer science where matrices may be used.
Matrices are used to figure who is seeded in a contest like the NCAA basketball final four. Matrices are used in any calculation that has to do with multiple variables. In business the maximum that you charge for a ticket and make the most money, I have used matrices.
we can measure the expansion of the world by matrices cause in magnetic fields vectors can be streched up to a certain limit which are the eigen values.