Why does the following not work:
f_scalar = @(x) 5*x^2+3*x-4; g_scalar = @(x) -4*x^2+6*x+5;f = @(vec) arrayfun(f_scalar,vec); g = @(vec) arrayfun(g_scalar, vec); points = solve(f(x) == g(x), x);h = @(x) g(x) - f(x);vals = linspace(points(1),points(2),100);disp(trapz(vals,h(vals)));
It gives "Error using sym/diff (line 36)
Second and third argument must either be variables or a variable and a nonnegative integer specifying the
number of differentiations."
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