what's the meaning of a number divide column vertor?

How did matlab get the ans of [0,0,0.3333] ?

Answer 1

[Stephen23]

"what's the meaning of a number divide column vertor?"

The mrdivide documentation explains at the top of the page that it will "Solve systems of linear equations xA = B for x". In your example you defined a system of lineaer equations with A = [1;2;3] and B=1, so the output you get is one solution of that system. This is easy to check:

>> A = [1;2;3];
>> B = 1;
>> x = B / A
x =
   0.00000   0.00000   0.33333
>> x * A % should be == B
ans =  1

If you expect to simply divide 1 by the values of A then you need to use rdivide:

>> 1 ./ A
ans =
   1.00000
   0.50000
   0.33333

To use MATLAB you need to learn the differences between array and matrix operations:

https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

[Xiao Lee]

got it...Thx

[Stephen23]

Xiao Lee: I hope that it helped! Please don't forget to accept my answer!

Answer 2

[jeewan atwal]

Please see the following link: https://in.mathworks.com/matlabcentral/answers/386947-when-using-matlab-you-can-actually-divide-a-scalar-by-column-vector-and-produce-a-result-how-does