Question

matlab的数列程序怎么写？

数列： a1=a2=1，a3=a1+a2，a4=a3+a2，a5=a4+a3…… 问该数列第一个大于10000的元素值和所处位置？

Answer 1

clc;clear;

a1 = 1;
a2 = 2;
a3 = 0;
i = 2;
while(a3<=10000)
i = i + 1;
a3 = a1 + a2;
a1 = a2;
a2 = a3;
end

a3 % 元素值
i % 位置

测试结果：
a3 = 10946
i = 21
该数列
1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765 10946

Answer 2

｛
int a[i],i=0,int a[i]=0,inta[i+1]=1;
if(a[i+2]<=10000){
a[i+2]=a[i+1]+a[i];
}
a[i+2]是最大值,i+2就是位置

大概就这样吧，没调试

Answer 3

>> a(1:2) = 1;
i = 2;
while a(i) < 10000
a(i+1) = a(i)+a(i-1);
i = i+1;
end;
disp(i);
disp(a(i));
21
10946
% 数列第21个数据 10946

Answer 4

a=1;b=1;n=2;
while b<=10000
c=a+b;
a=b;
b=c;
n=n+1;
end

结果存储在n中，数值为b