Matrix Addition

Write A Shell Script To do Matrix Addition

Shell Script:

clear
echo -n enter number of rows:
read m
echo -n enter number of columns:
read n
echo enter elements of matrix A:
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
echo -n "enter element ($i,$j):"
read arr1[$i$j]
done
done
echo elements of matrix B:
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
echo ${arr1[$i$j]}
done
done
echo enter elements of matrix B:
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
echo -n "enter element ($i,$j):"
read arr2[$i$j]
done
done
echo elements of matrix B:
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
echo ${arr2[$i$j]}
done
done
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
arr3[$i$j]=`expr ${arr1[$i$j]} + ${arr2[$i$j]}`
done
done
echo After addition the matrix is:
for((i=1;i<=$m;i++))
do
for((j=1;j<=$n;j++))
do
echo ${arr3[$i$j]}
done
done

OUTPUT:

[admin@localhost ~]$ sh matadd.sh
enter number of rows:2
enter number of columns:2
enter elements of matrix A:
enter element (1,1):1
enter element (1,2):2
enter element (2,1):3
enter element (2,2):4
elements of matrix B:
1
2
3
4
enter elements of matrix B:
enter element (1,1):1
enter element (1,2):2
enter element (2,1):3
enter element (2,2):4
elements of matrix B:
1
2
3
4
After addition the matrix is:
2
4
6
8