Matrices


   
 
Summary
A matrix is a rectangular array of numbers, arranged in rows and columns.
 
Order of a matrix = Number of rows in it x Number of columns in it
 
Row matrix is a matrix with only one row.
 
Column matrix is a matrix with only one column.
 
Zero or Null matrix is a matrix in which every element is zero.
 
Unit or Identity matrix is a square matrix in which the diagonal elements (top left to bottom right) are each equal to 1 and all the other non diagonal elements are zero (0). It is denoted by I.
 
Two matrices are said to be compatible for multiplication, if the number of columns in the first matrix is the same as the number of rows in the second matrix.
 
 
     
   
Get unlimited tutoring in Math, English, Physics, Chemistry, Biology, Algebra, Geometry and all other subjects at $99.99 per month!


Customer Care

Click to get customer service, technical support and subscription help.

Customer Care Chat


Refer-A-Friend

Get One Month Free!
When you refer a friend