If A= [1001] and B=[0101], what will be the value of the multiplication of A and B in MATLAB? I am new here. So, having trouble understanding
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If A= [1001] and B=[0101], what will be the value of the multiplication of A and B in MATLAB? I am new here. So, having trouble understanding
2 Kommentare
Stephen23
am 26 Jan. 2024
Bearbeitet: Stephen23
am 26 Jan. 2024
"what will be the value of the multiplication of A and B in MATLAB?"
A = [1001]
B = [0101]
A*B
But I suspect that you actually meant A and B to be vectors... perhaps:
A = [1,0,0,1]
B = [0,1,0,1]
A.*B % element-wise array multiplication
A*B % matrix multiplication
Rik
am 26 Jan. 2024
Or perhaps a binary encoding was intended, in which case:
A=0b1001,B=0b0101
A*B
Antworten (1)
Udit06
am 12 Feb. 2024
Hi Hasin,
The multiplication of two binary numbers A =
and B =
follows the shift and add method, similar to long multiplication of decimal numbers. Let's multiply them as you would on paper:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1614741/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1614746/image.png)
1 0 0 1 (A)
× 0 1 0 1 (B)
------------
1 0 0 1 (A * 1)
0 0 0 0 (A * 0, shifted one position to the left)
1 0 0 1 (A * 1, shifted two positions to the left)
+0 0 0 0 (A * 0, shifted three positions to the left)
------------
1 0 1 1 0 1 (Result)
------------
Hence, the resultant of multiplication of A and B comes out to be
which is equivant to 45 in decimal number system.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1614751/image.png)
You can refer to bin2dec and dec2bin functions for interconversion between the two number systems.
I hope it helps.
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