Help required with Tranformation of coordinate system

[BansalMaddy]

hi all!
i need a help in python! i am struggling to implement this since last
2/3 days. suppose i have a 2D plot (say y=x**2).
now on the same plot i want to transform my origin of coordinate
system to a point (x',y' on this curve and again create a new plot
with origin at x',y')
can somebody help me how can i offset my cordinate system ...