tangent(1)

NAME
tangent - linearization of a dynamical system at an equiibrium point

CALLING SEQUENCE
[f,g,newm]=tangent(ff,xe,[ue])

PARAMETERS

ff  : a string which gives the name of the Scilab macro which codes the system

xe  : coulmn vector which gives the equlibrium point for the value ue of the parameter

ue  : real value.

f, g
    : two matrices for the linearized system dxdot=f.dx + g.du

newm
    : A new macro of type [y]=newm(t,x,u) which computes the field of the linearized system (newm(t,xe,ue)=0)

DESCRIPTION
linearizes arount the quilibrium point (xe,ue) the field of the dynamical system given by a Scilab macro ff, xdot=ff(t,x,[u]). The synamical systeme is supposed to be autonomous.