solve this problem by writing a script in MATLAB

8. A rectangular strain gage rosette is employed to measure strains on the free surface of an aluminum alloy part, with the result being ex = -1550 pe, E3 = -3800 pe, and ec=720 je. Determine the maximum normal stress and the maximum shear stress, and determine the orientation of the principal normal element relative to reference axes. Assume that no yielding has occurred