## Homework 5

- Problems (pdf).
- Sample text file for area computing. Please make your function interface look like "function [
*area*] = get_area(*filename*)" where *area *is the returned signed area and *filename *is the string of the text file name.
- Two STL files (ASCII) for volume computing (STL1, STL2). Please make your function interface look like "function [
*vol*] = get_vol(*filename*)" where *vol *is the returned signed volume and *filename *is the string of the STL file name.
- For the 2D formula for area computing, a
**formal **proof is required. For the 3D formula for volume computing, a formal proof is not required.
- A brief introduction to STL file format. A STL file reader written in Matlab that you can use in your codes (you only need the "rndread" function)