Fplot Limit
PlotPub Publication quality graphs in MATLAB. MATLAB is an excellent tool. It is equally popular among students, researchers and professors. If you use MATLAB for your project/research, you probably know that it is not easy to create publication quality graphs (PQGs) using MATLAB. FPLOT Plot function. FPLOT(FUN,LIMS) plots the function FUN between the x-axis limits. Specified by LIMS = XMIN XMAX. Using LIMS = XMIN XMAX YMIN YMAX also controls the y-axis limits. FUN(x) must return a row vector for. Each element of vector x. For example, to plot the function y=exp(x) for x=0 to 10 with the increment = 1. Fplot (@(x) was used to generate a figure the resulting curve shape is wrong and errors are produced. The correct X minimum and maximum values were not represented correctly. My command Used was taken from the 'help' menu.
MATLAB Function Reference |
How to control the limits of data values in R plots. R has multiple graphics engines. Here we will talk about the base graphics and the ggplot2 package. We’ll create a bit of data to use in the examples: one2ten. The fundamental idea in calculus is to make calculations on functions as a variable “gets close to” or approaches a certain value. Syms x fplot(x/abs.
fplotPlot a function between specified limits
Syntax
Description
fplot
plots a function between specified limits. 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). 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).
fplot('
plots function
',limits)'
function
'
between the limits specified by limits
. limits
is a vector specifying the x-axis limits ([xmin
xmax])
, or the x- and y-axis limits, ([xmin
xmax
ymin
ymax]
).
'function'
must be the name of an M-file function or a string with variable x
that may be passed to eval
, such as 'sin(x)'
, 'diric(x,10)'
or '[sin(x),cos(x)]'
.
The function f(x)
must return a row vector for each element of vector x
. For example, if f(x)
returns [f1(x),f2(x),f3(x)]
then for input [x1;x2]
the function should return the matrix
fplot('
plots function
',limits,LineSpec
)'
function
'
using the line specification LineSpec
.
fplot('
plots function
',limits,tol)'
function
'
using the relative error tolerance tol
(The default is 2e-3, i.e., 0.2 percent accuracy).
fplot(
plots '
function
',limits,tol,LineSpec
)'
function
'
using the relative error tolerance tol
and a line specification that determines line type, marker symbol, and color.
fplot('
with function
',limits,n)n >= 1
plots the function with a minimum of n+1
points. The default n
is 1
. The maximum step size is restricted to be (1/n)*(xmax-xmin)
.
fplot(fun,lims,...)
accepts combinations of the optional arguments tol
, n
, and LineSpec
, in any order.
[X,Y] = fplot('
returns the abscissas and ordinates for function
',limits,...)'
function
'
in X
and Y
. No plot is drawn on the screen, however you can plot the function using plot(X,Y)
.
[...] = plot('
enables you to pass parameters function
',limits,tol,n,LineSpec,P1,P2,...)P1
, P2
, etc. directly to the function 'function
':
To use default values for tol
, n
, or LineSpec
, you can pass in the empty matrix ([]
).
Remarks
fplot
uses adaptive step control to produce a representative graph, concentrating its evaluation in regions where the function's rate of change is the greatest.
Examples
Plot the hyperbolic tangent function from -2 to 2:
Create an M-file, myfun
, that returns a two column matrix:
Plot the function with the statement:
Plot Limits
Addition Examples
See Also
eval
, ezplot
, feval
, LineSpec
, plot
Function Plots for related functions
Matplotlib Plot Limits
format | fprintf |