I don't understand why i keep getting : Error using plot vector must be the same length.
As the data shows s1= 1X100and s2=1X99 which i don't understand why it has that data.
clc;sym('x');s= sin(pi*x);x= linspace(0,4);subplot(2,1,1);plot(x,s);axis([0 4 -4 4]);subplot(2,1,2);s1= diff(s);plot(x,s1)%Error at this line
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