% Example 12-1: Solving a nonlinear equation

% Initial plot for estimate
fplot('x*exp(-x)-0.2', [0 8])
grid on
pause

% Find the solution between 0 and 1, guess 0.3
x1 = fzero('x*exp(-x)-0.2', 0.3)
pause

% Find the second solution between 2 and 3
% Define an anonymous function F
F = @(x) x*exp(-x)-0.2
fzero(F, 2.5)
pause

% What if there is no solution?
fzero('x^2+1', 1)