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Matlab single quote mark?

I need to know what the single quote mark is at the end of the first line of this code . What is the meaning of it .?

X = linspace(0,2*pi,50)';
Y = [cos(X), 0.5*sin(X)];
stem(Y)

when I remove I see a single color two functions plotted coming after the other , when I use it , I see what exactly I want to see . But what is it ? When should I use it ?

Solution

  • The single quote mark is transposing the vector. That means, a row-vector becomes a column-vector and vice versa.