what happens behind "/"

[2:6]/[3:7]

Ans = 0.8148

what happens behind this operation?

Is there any algorithm?

Answer 1

[Torsten]

If x = [2 3 4 5 6] and y = [3 4 5 6 7], then x/y determines the number "a" for which the error when approximating x by a*y is minimal.

The solution to this optimization problem is

x = 2:6;
y = 3:7;
a = sum(x.*y)/sum(y.^2)

a = 0.8148

a = x/y

a = 0.8148

Answer 2

[Fangjun Jiang]

help /

 / Right matrix divide.
    B/A is the matrix division of A into B, which is roughly the
    same as B*INV(A) , except it is computed in a different way.
    More precisely, B/A = (A'\B')'. See MLDIVIDE for details.
 
    C = MRDIVIDE(B,A) is called for the syntax 'B / A' when B or A is an object.
 
    See MATLAB Operators and Special Characters for more details.
 
    See also MLDIVIDE, RDIVIDE, LDIVIDE, PAGEMRDIVIDE.

    Documentation for mrdivide
       doc mrdivide

    Other uses of mrdivide

       codistributed/mrdivide    laurpoly/mrdivide
       distributed/mrdivide      se2/mrdivide
       dlarray/mrdivide          StaticModel/mrdivide
       duration/mrdivide         symbolic/mrdivide
       DynamicSystem/mrdivide    tall/mrdivide
       embedded.fi/mrdivide      timeseries/mrdivide
       gpuArray/mrdivide         tsdata.datametadata/mrdivide
       LagOp/mrdivide