champ(2)

NAME
champ - draw a 2d vector field

CALLING SEQUENCE
champ(fx,fy [,arfact,rect,flag])

PARAMETERS

fx  : a matrix which describes the x component of the vector field.

fy  : a matrix which describes the y component of the vector field.

arfact
    : an optional argument of type real which gives a scale factor for the display of the arrow heads on the plot (default value is 1.0)

rect
    : a vector rect=[xmin,ymin,xmax,ymax] which gives the boundaries

flag
    : a string of length one.

    -   if strflag[0] == '0' No axis drawn around the field

    -   if strflag[0] == '1' then an axis is drawn the value of vrect is used to get the values to put on the axis

    -   if strflag[0] == '2' Then an axis is drawn and the values of previous call to a drawing routine are used to get the values of the boundaries to use.

DESCRIPTION
champ draws a 2d vector field.

EXAMPLE
enter the command champ() to see a demo

AUTHOR
J.Ph.C.