Matlab math Cleve morler者 陈文斌(wbchen(@fudan.edu.cn) 复旦大学2002年
Matlab Math Cleve Morler著 陈文斌（wbchen@fudan.edu.cn) 复旦大学2002年
http://www.stanford.edw/class/cs138/mlmath.html
http://www.stanford.edu/class/cs138/mlmath.html
黄金分割
黄金分割 1 1 −1 =
c2--1=0 =1±√s MATLAB p=1-1-11(x)=x2-x-1 I=roots(p) 0.61803398874989 1.61803398874989 C(1)*X^N+….+C(N)*+C(N+1)=0
1 1 −1 = 1 0 2 − − = 2 1 5 = p = [1 –1 –1]; r = roots(p); ( ) 1 2 p x = x − x − r = -0.61803398874989 1.61803398874989 C(1)*X^N + ... + C(N)*X + C(N+1) = 0
符号工具箱 ATLAB Mapple r=solve(1/x=X-1) [1/2*5^(1/2)+1/2] phi =r(1) [1/2-1/2*5^(1/2) vpa(phi, 50) 1/2*5^(12)+1/2 1.6180339887498948482045868343656381177203091798058 phi= double(phi 1.61803398874989
r = solve(‘1/x = x-1’); r = [ 1/2*5^(1/2)+1/2] [ 1/2-1/2*5^(1/2)] 符号工具箱 Mapple phi = r(1) vpa (phi,50) 1/2*5^(1/2)+1/2 1.6180339887498948482045868343656381177203091798058 phi = double(phi) 1.61803398874989