what does ezplot do in matlab

ezplot is a function in MATLAB that plots a symbolic expression, equation or a function handle in the current axes of the current figure. It is useful for creating quick plots of mathematical functions without explicitly defining them.

Syntax:

main.m
ezplot(fun, [a, b])
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Here, fun represents a symbolic expression or a function handle, and [a, b] is the range over which to plot the function.

Example:

main.m
syms x
f = x^2 + 2*x + 1;
ezplot(f, [-5, 5]);
title('Parabolic Function');
xlabel('x');
ylabel('y');
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This code will plot the function f = x^2 + 2*x + 1 over the range [-5, 5] and adds labels to the x and y axis.

Note that ezplot is now replaced with fplot and implicitplot in newer versions of MATLAB. fplot is used to plot explicit functions whereas implicitplot is used to plot implicit functions.