plot graph, and add value

Moving Boll to arrow direction

output is medium value

But output is string print, How to value printing

    output=((x_mving-x_start)^2+(y_mving-y_start)^2)^0.5
    xt=(x_start+x_mving)/2;
    yt=(y_start+y_mving)/2;
    str = 'output';
    tt=text(xt,yt,str);

Answer 1

[KSSV]

x = (1:10)' ;
y = rand(size(x)) ;
plot(x,y,'.r')
hold on
text(x,y,num2str(y))

[dmfwlansejr]

Thanks!!!