This example passes function handles to fplot, one created from a MATLAB function and the other created from an anonymous function. Plot the hyperbolic tangent function from -2 to 2:Ĭreate an M-file, myfun, that returns a two-column matrix:Ĭreate a function handle pointing to myfun: The default range of interval for the graph generated out. No plot is drawn on the screen however, you can plot the function using plot(X,Y).įplot uses adaptive step control to produce a representative graph, concentrating its evaluation in regions where the function's rate of change is the greatest. MATLAB function fplot() is used to generate symbolic plots with respect to expressions or functions. Returns the abscissas and ordinates for fun in X and Y. Plots into the axes with handle axes_handle instead of the current axes ( gca). The maximum step size is restricted to be (1/n)*(xmax-xmin).Īccepts combinations of the optional arguments tol, n, and LineSpec, in any order. With n >= 1 plots the function with a minimum of n+1 points. Plots fun using the relative error tolerance tol and a line specification that determines line type, marker symbol, and color. Plots fun using the relative error tolerance tol (the default is 2e-3, i.e., 0.2 percent accuracy). Plots fun using the line specification LineSpec. For example, if f(x) returns then for input the function should return the matrix The function f(x) must return a row vector for each element of vector x. A function handle for an M-file function or an anonymous function (see Function Handles and Anonymous Functions for more information).A string with variable x that may be passed to eval, such as 'sin(x)', 'diric(x,10)', or '' With fplot you define the function generically, for example as an anonymous function pass a handle to that function and let Matlab choose the x values and compute the y values.limits is a vector specifying the x-axis limits ( ), or the x- and y-axes limits, ( ). Plots fun between the limits specified by limits. If the function returns more than one value for a given x, then y is a matrix whose columns contain each component of f(x) (see the second example). The function must be of the form y = f(x), where x is a vector whose range specifies the limits, and y is a vector the same size as x and contains the function's value at the points in x (see the first example).

fplot(f) plots the curve defined by the function y f(x) over the default interval -5 5 for x. 2-D and 3-D Plots graphics line plots MATLAB. Fplot (MATLAB Functions) MATLAB Function Referenceįplot plots a function between specified limits. Matlab function: fplot Plot expression or function.

Fplot matlab