how can i shade the area between two curve

i have two curve that intersect at two points,my aim is to calculate the area between this two curve.this is ok but on the other hand,i'd like to see this two curve in the figure,this is also ok but i don't know how i can shade the area that is between two curve.this is my program:

syms t
y1=t^2;
y2=-(t^2-16);
fg=figure; 
ax=axes;  
ez1=ezplot(char(y1),[-8,8]); 
hold on                     
ez2=ezplot(char(y2),[-8,8]);
legend('y1= t^2','y2= -(t^2-16)')
set(ez1,'color',[1 0 0])  
title(ax,['y1= t^2' ' y2= -(t^2-16)'])
t=solve('-(t^2-16)-t^2=0'); 
kokler=double(t)
alan=quad('-(t.^2-16)-t.^2',kokler(2),kokler(1))

[Jan]

Which are the two curves in your code?

[murat artan]

y1 and y2

Answer 1

[bym]

x = linspace(kokler(1),kokler(2)); % 100 points between intersections
yy1 =x.^2; %lower function
yy2 = -(x.^2-16); % upper function
x = [x,x];        % repeat x values
yy = [yy1,yy2];   % vector of upper & lower boundaries
fill(x,yy,'b')    % fill area defined by x & yy in blue

[murat artan]

this is ok, but what did you do here? I don't understand much.

thank you very much

[bym]

I have commented the code

[murat artan]

thanks a lot

[Nate Roberts]

There is a different answer that is more clear. Look here instead: More Clear Answer

Answer 2

[hanif]

I have two overlay image that intersect at two points,my aim is to calculate the area between this two curve.I don't know how to shade the area that is between two curve.this is my program:

RGB=imread('DETECTOR1.PNG');

A=imread('DETECTOR2.PNG');

F=imfuse(RGB,A,'blend','Scaling','Joint');

imwrite(RGB,'Detectors.PNG');

imtool(F);

[Annu Panwar]

what if we want numerical value for the shaded area.