matrix additional in c

For learning  matrix addition you must study my blog about two dimensional  array. 

In last tutorial we learn how to declare two dimensional array. Here i gave you concept  how to add two matrix.

first matrix is 

  int m1[3][3];

second matrix is 

  int m2[3][3];

Third matrix is 

int m3[3][3];

                     m3                                             m1                                                m2

              col0    col1   col2                   col0    col1    col2               col0    col1    col2
                 

row0     ---        ---      ---         row0    ---        ---        ---      row0    ---        ---        ---    

  

row1    ---        ---      ---          row1    ---        ---        ---      row1    ---        ---        ---
 

row2    ---        ---      ---          row2    ---        ---     ---          row2    ---        ---     ---

-------------------------------------------------------------------------------------------------------------------------------


from above scenario

 (0,0) of m1 always add  (0,0) of m2 and stores in (0,0) of m3

  so in c language

    m3[0][0]=m1[0][0]+m2[0][0]

similarly

(0,1) of m1 always add  (0,1) of m2 and stores in (0,1) of m3

    m3[0][1]=m1[0][1]+m2[0][1]

similarly

(0,2) of m1 always add  (0,2) of m2 and stores in (0,2) of m3

    m3[0][2]=m1[0][2]+m2[0][2]


here we notice that row is constant means 0 but column varies 0,1,2
   
    so   for(col=0;col<3;col++)
           { 

   
                m3[0][col]=m1[0][col]+m2[0][col] ]


            }
------------------------------------------------------------------------------------------------------------------------------- 

second row of matrix

(1,0) of m1 always add  (1,0) of m2 and stores in (1,0) of m3

  so in c language

    m3[1][0]=m1[1][0]+m2[1][0]

similarly

(1,1) of m1 always add  (1,1) of m2 and stores in (1,1) of m3

    m3[1][1]=m1[1][1]+m2[1][1]

similarly

(1,2) of m1 always add  (1,2) of m2 and stores in (1,2) of m3

    m3[1][2]=m1[1][2]+m2[1][2]


here we notice that row is constant means 1 but column varies 0,1,2
   
    so   for(col=0;col<3;col++)
           { 

   
                m3[1][col]=m1[1][col]+m2[1][col] ]


            }
------------------------------------------------------------------------------------------------------------------------------- 

                               

third row of matrix


(2,0) of m1 always add  (2,0) of m2 and stores in (2,0) of m3

  so in c language

    m3[2][0]=m1[2][0]+m2[2][0]

similarly

(2,1) of m1 always add  (2,1) of m2 and stores in (2,1) of m3

    m3[2][1]=m1[2][1]+m2[2][1]

similarly

(2,2) of m1 always add  (2,2) of m2 and stores in (2,2) of m3

    m3[2][2]=m1[2][2]+m2[2][2]


here we notice that row is constant means 2 but column varies 0,1,2
   
    so   for(col=0;col<3;col++)
           { 

   
                m3[2][col]=m1[2][col]+m2[2][col] ]


            }
------------------------------------------------------------------------------------------------------------------------------- 
              

  anyone got idea what i want to say. Yes Here we repeating similar loop row 0, row 1
  row2 . We have some way to reduce this task . How it is possible.

   Solution :
               using second loop out side the column .
  
         for(row=0;row<3;row++)
         {
               for(col=0;col<3;col++)
              { 

   
                  m3[row][col]=m1[row][col]+m2[row][col] ]

               }

          }

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