恒润科技 HiRain Technologies HIRAIN TECHNOLOGIES 解答:函数M-文件(续) g Start extra credit if (sidel==side2)&(side2==side 3) str= This is an equilateral triangle! i elseif sidel==side2Iside2==side3 l sidel==side3 str= This is an isosceles triangle! end 8 End extra credit else str=This does not form a valid triangle. t End str out triangle(3,4,5) www.hirain.com14 解答：函数M-文件（续） % Start extra credit if (side1==side2)&(side2==side3) str='This is an equilateral triangle!'; elseif side1==side2|side2==side3|side1==side3 str='This is an isosceles triangle!'; end % End extra credit else str='This does not form a valid triangle.'; End >> str_out = mytriangle(3,4,5)