matlab画出雪花曲线

function y=koch(x1,x2,y1,y2,n)if n>1 koch(x1,y1,(2*x1+x2)/3,(2*y1+y2)/3,n-1); koch((2*x1+x2)/3,(2*y1+y2)/3,(x1+x2)/2+(y1-... y2)*sqrt(3)/6,(y1+y2)/2+(x2-x1)*sqrt(3)/6,n-1); koch((x1+x2)/2+(y1-y2)*sqrt(3)/6,(y1+y2)/2+(x2-... x1)*sqrt(3)/6),(2*x2+x1)/3,(2*y2+y1)/3,n-1); koch(2*x2+x1)/3,(2*y2+y1)/3,x2,y2,n-1);else x=[x1,(2*x1+x2)/3,(x1+x2)/2+(y1-... y2)*sqrt(3)/6,2*x2+x1)/3,x2]; y=[y1,(2*y1+y2)/3,(y1+y2)/2+(x2-... x1)*sqrt(3)/6,2*y2+y1)/3,y2]; line(x,y)endaxis equaltitle(✀雪花曲线✀)运行之后有 function y=koch(x1,x2,y1,y2,n)|Error: Function definitions are not permitted inthis context.保存为M文件后，调用 koch(0,0,1,0,5)Error: File: koch.m Line: 7 Column: 51Unbalanced or unexpected parenthesis or bracket.