Derivative of a parametric function [on hold]

Derivative of a parametric function [on hold]

pI have the following parametric function: \begin{align} x amp;= A_1
\sin(deg(t) F_1 + P_1) \exp(-D_1 t) + A_2 \sin(deg(t) F_2 + P_2) \exp(-D_2
t)\\ y amp;= A_3 \sin(deg(t) F_3 + P_3) \exp(-D_3 t) + A_4 \sin(deg(t) F_4
+ P_4) \exp(-D_4 t)\\ z amp;= A_1 \sin(deg(t) F_5 + P_5) \exp(-D_5 t) +
A_6 \sin(deg(t) F_6 + P_6) \exp(-D_6 t) \end{align}/p pWhat is the
derivative? Thanks!/p pI'm trying to plot something called a Harmonograph,
and would like to enclose the curve within a tube. For that I need the
derivative and tangents./p pI tried using the a
href=http://www.derivative-calculator.net/ rel=nofollowOnline Derivative
Calculator/a but became confused./p pThanks!/p