Spoken Tutorial, IIT Bombay 
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			GUI        
 Building a GUI for plotting 2D parametric curves- Assignment



1. Create a GUI to plot a Parabola using its parametric equations.
      y=a*(t)^2,x=2*a*t 
2. Change 'a' from -1 to 1 using a Slider and display it in a Text box.
3. Consider, 't' varies from -10 to 10.
4. Add grid lines to the plot and label the Axes.