Question

matlab 数组中的科学计数法改成小数

A=[0 0 0 0 1 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0.000141213 0.000353033 0.99858787 7.06E-05 0 0.000635459 0 7.06E-05
0 0 0 0 1 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0
0 0 0 0 0 0 0 0]
如何讲科学计数法变成小数，保留4为

Answer 1

%set 显示总位数
digits(6)
%按格式显示
vpa(A)

% 实验过的哦。。。能满足你的要求。。。呵呵

Answer 2

A=vpa(A,6); % 6 是需要保留的小数位数

追问

??? Error using ==> mupadmex
Error in MuPAD command: ']' expected [line 1, col 16]
Error in ==> sym.sym>cell2ref at 2246
S = mupadmex(y);
Error in ==> sym.sym>tomupad at 2158
S = cell2ref(x);
Error in ==> sym.sym>sym.sym at 114
S.s = tomupad(x,a);
Error in ==> vpa at 55
ss = sym(s,'f');

程序跑完出现了这个错误