animated plot of a 2D parametrized curve.
paramfplot2d(f,x,theta)
paramfplot2d(f,x,theta,flag)
paramfplot2d(f,x,theta,flag,rect)
:x real vector. : :f function y=f(x,t) . f is a Scilab function or a dynamically
linked routine (referred to as a string).
: :theta real vector (set of parameters). : :flag string ‘no’ or ‘yes’: If “yes” screen is not cleared
between two consecutive plots.
: :rect “rectangle” [xmin, xmax, ymin, ymax] (1 x 4 real vector), :
Animated plot of the function x, t–> f(x,t) for t=theta(1),theta(2),etc. f can be a either Scilab function or a dynamically linked routine since y=f(x,t) is evaluated as y=feval(x(:),t,f). See feval.
f is a mapping x, t–> f(x,t) = R^N valued function for x a vector of R^N and t a real number.
`deff`_('y=f(x,t)','y=t*sin(x)')
x=`linspace`_(0,2*%pi,50);theta=0:0.05:1;
`clf`_;paramfplot2d(f,x,theta);
function V=twosoliton(x, t)
a1=6;s1=2;v1=a1^2;
a2=4;s2=40;v2=a2^2;
f1=`exp`_(-a1*(x-s1-v1*t));
f2=`exp`_(-a2*(x-s2-v2*t));
r=((a2-1)/(a2+a1))^2;
V=2*(v1*f1+v2*f2+2*(a2-a1)^2*f1.*f2+r*(v2*(f1^2).*f2+v1*f1.*(f2^2)))./((1+f1+f2+r*f1.*f2)^2);
endfunction
x=`linspace`_(1,100,3000);
`clf`_;paramfplot2d(twosoliton,x,0:0.05:3);