一維搜尋---黃金分割法
阿新 • • 發佈:2018-12-18
參考網址:
https://blog.csdn.net/shenziheng1/article/details/51317801
https://www.jianshu.com/p/beea2b4447c8
原理
演算法流程
演算法
a = 1; b = 4; Err = 0.001; T = 0.618; c = a+(1-T)*(b-a); d = b-(1-T)*(b-a); Fc = Fx(c); Fd = Fx(d); while(1) if(abs(b-a)<Err) x=0.5*(a+b); break; end if(Fc<Fd) a = a; b = d; d = c; Fd = Fc; c = a+(1-T)*(b-a); Fc = Fx(c); else %Fc>Fd b = b; a = c; c = d; Fc = Fd; d = b-(1-T)*(b-a); Fd = Fx(d); end end x minFx = Fx(x) function y = Fx(x) y = x*x-6*x+9; end