fplot2d

Scilab Function
Last update : 25/04/2007

fplot2d - 2D plot of a curve defined by a function

### Calling Sequence

  `fplot2d(xr,f,[style,strf,leg,rect,nax])`
  `fplot2d(xr,f,<opt_args>)`

### Parameters

- `xr` : vector.
- `f` : external of type `y=f(x)` i.e. a scilab function or a dynamically linked routine referred to as a string.
- `style,strf,leg,rect,nax` : see `plot2d`
- `<opt_args>` : see `plot2d`

### Description

`fplot2d` plots a curve defined by the external function `f` . The curve is approximated by a piecewise linear interpolation using the points `(xr(i),f(xr(i))` . The values of f(x) are obtained by `feval(xr,f)` .

Enter the command `fplot2d()` to see a demo.

### Examples

    deff("[y]=f(x)","y=sin(x)+cos(x)")
    x=[0:0.1:10]*%pi/10;
    fplot2d(x,f)
    clf();
    fplot2d(1:10,'parab')

### See Also

`plot2d` , `feval` , `paramfplot2d` ,

### Author

J.Ph.C.