Graphics Programs Reference
In-Depth Information
v=
1
1
2
2
>> v*u
ans =
1
2
0
1
1
2
0
1
2
4
0
2
2
4
0
2
>> u*v
ans =
5
The matrix inverse can be found with the
inv
command:
>> a = pascal(3)
a=
1
1
1
1
2
3
1
3
6
>> inv(a)
ans =
3
-3
1
-3
5
-2
1
-2
1
>> a*inv(a)
ans =
1 0 0
0 1 0
0 0 1
To multiply the elements of two matrices use the
.*
operator:
>>a=[12;34]
a=
1 2
3 4
>>b=[23;01]
b=
2
3
0
1
>> a.*b
ans =
2
6
0
4
