Shading an area between two curves symbolically

I want to shade the area under the line y=2 and above the curve y=1+cos(x) from 0 to pi. I'm having trouble doing this. This is my code:

dy1 = 1+cos(x);
dy2 = 2;        
fplot(dy1, [0 pi]); hold on;
fplot(dy2, [0 pi]);
patch([x fliplr(x)], [dy2 fliplr(dy1)], 'g');
hold off;

Answer 1

[Star Strider]

It is necessary to get the relevant 'x' and 'y' values from the fplot calls first. You can then use them in the patch call.

Try this --

syms x 
dy1 = 1+cos(x);
dy2 = 2;        

figure
fp1 = fplot(dy1, [0 pi]); 
hold on
fp2 = fplot(dy2, [0 pi]);
hold off
ylim('padded')
x1 = fp1.XData;
y1 = fp1.YData;
x2 = fp2.XData;
y2 = fp2.YData;
patch([x1 fliplr(x2)], [y1 fliplr(y2)], 'g');
hold off;

.

[rezheen]

Thanks!

[Star Strider]

As always, my pleasure!