MATLAB: How should i store the values of I and X in a vector to plot the graph of I vs X

store valuesvectorwhile loop

syms f(x)
sym x
f(x)=2*x^2
x=0;
v=[];
diary('wispn.txt')
diary on
while x<0.36
I=int(f,0,x)
x=x+0.1;
v(t)=w(x,I)
t=t+1;
end
diary off

Best Answer

  • A simple approach is
    syms f(x)
    sym x
    f(x) = 2*x^2;
    xv = 0; % x is name of sym variable
    I = [];
    while xv(end) < 0.36
    I(end+1) = int(f,x, 0, xv(end));
    xv(end+1) = xv(end) + 0.1;
    end
    xv(end) = [];
    plot(xv, I);