ezplot (MATLAB Function Reference)

Easy to use function plotter.

ezplot(f)
ezplot(f,[xmin xmax])
ezplot(f,[xmin xmax],fig)

Description

ezplot(f) plots a graph of f(x), where f is a symbolic expression representing a mathematical expression involving a single symbolic variable, say x. The domain on the x-axis is usually [-2*pi, 2*pi].

ezplot(f,[xmin xmax]) uses the specified x-domain instead of the default
[-2*pi, 2*pi].

ezplot(f,[xmin xmax],fig) uses the specified Figure number instead of the current Figure. It also omits the title of the graph.

Examples

Either of the following commands,

ezplot('erf(x)')
ezplot erf(x)

plot a graph of the error function::

The statement,

ezplot('sin(x)',[0 2*pi])

creates the plot:

Algorithm

ezplot determines the interval of the x-axis by sampling the function between -2*pi and 2*pi and then selecting a subinterval where the variation is significant. For the range of the y-axis, ezplot omits extreme values associated with singularities.