how to find basis of a subspace

i m new in matlab. i can do till this. but ii donot find any satisfactory answer to find basis

x1= [1;2;3;1;5];

x2= [1;-1;0;-1;-2];

x3= [-1;0;3;4;6];

x4= [-3;1;1;1;1];

x=[x1 x2 x3 x4 ]

rank(x)

Answer 1

[Pratyush Roy]

Hi Zannatul,

The following documentation link might be helpful to find orthornormal basis for a set of vectors:

https://www.mathworks.com/help/matlab/ref/orth.html

Hope this helps!