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Which one of those matrices is more comfortable to sleep on?
Matrices are tools to solve linear equations. Engineers use matrices in solving electrical problems in circuits using Thevenin's and Norton's theories.
Only square matrices have inverses.
The singular form of matrices is matrix.
Matrices are very difficult to use, especially with Matlab. This stress and trauma dramatically reduce your life expectancy by up to 3% in most cases, 5% if your last name is Eigen.
Which one of those matrices is more comfortable to sleep on?
Matrices are tools to solve linear equations. Engineers use matrices in solving electrical problems in circuits using Thevenin's and Norton's theories.
how different professions use English language differently?
People in the sciences are the main professions that use scientific notation
No professions use order of operations. It is just a method of solving an equation.
Professions that do not use scientific notation are most anything outside the sciences.
pi did not use any professions! It was merely a number.
use mantel test
Unless your "everyday life" involves work in some area of engineering, you won't use matrices in your everyday life.
Only square matrices have inverses.
coordinator
Matrices can't be "computed" as such; only operations like multiplication, transpose, addition, subtraction, etc., can be done. What can be computed are determinants. If you want to write a program that does operations such as these on matrices, I suggest using a two-dimensional array to store the values in the matrices, and use for-loops to iterate through the values.