how to create a Matlab program computing area between 2 curves.

hello everyone... I badly need a code on how to create this matlab program

1. Asks to input two intersecting polynomial functions that would meet in two distinct points.

2. The program would identify the points of intersection of the graphs

3. Graphs the given two curves and ensures that the two points of intersection would be part of the graph.

4. Evaluates the area between two curves.

---badly needeeed! :((( thanks!

Answer 1

[Grzegorz Knor]

1:

doc input

2:

doc solve
doc syms
doc eval
doc subs

http://www.mathworks.com/matlabcentral/answers/15551-how-to-compute-for-the-points-of-intersection-of-2-curves

3:

doc plot 
doc xlim

4:

doc trapz

Maybe this link will be also useful:

http://www.mathworks.com/matlabcentral/fileexchange/13188-shade-area-between-two-curves