搜搜考试网求斐波那契数列前20项之和
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/27 15:21:12
为用了很没有效率的递归,所以出结果有点慢#includeiostream.h
PrivateFunctionF(nAsLong)AsLongIfn>2ThenF=F(n-1)+F(n-2)ElseF=1EndIfEndFunctionPrivateSubCommand1_Cli
main(){inti,n,s=1,f[]={0,1,1};printf("Pleaseinputthenumberofterms:");scanf("%d",&n);if(n==0){s=0;f[2
//分别使用两个递归求分子分母即可：代码如下：usingSystem;namespace数列求和{classProgram{staticvoidMain(string[]args){intresult
通项公式为A（n-1）+An=A(n+1)11235813213455＝143
斐波那契数列前13项为1,1,2,3,5,8,13,21,34,55,89,144,2331+1+2+3+5+8+13+21+34+55+89+144+233=609
intnum=1;intprev=0;for(inti=0;i
267914295,用EXCEL很简单的
#include#defineCOL5//一行输出5个longfibonacci(intn){//fibonacci函数的递归函数if(0==n||1==n){//fibonacci函数递归的出口re
1112233455861372183495510891114412233133771461015987161597172584184181196765201094621177112228657234
1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121
PrivateFunctionbq(ByValsAsLong)AsLongSelectCasesCase1bq=1Case2bq=1CaseIs>=3bq=bq(s-1)+bq(s-2)EndSele
#includeintmain(){inti=0;floatsum=0;intn;intx[n],y[n];printf("请输出计算的项数:");scanf("%d",&n);x[0]=2;x[1]
Private Sub Command1_Click()Dim F(11), i As LongF(0) =
1123581321345589143232375607……
方法1：斐波那数列前30项是1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,4
n＝1,2,3,4,.第n项的数值an：an＝﹙1／√5﹚×﹛[﹙1＋√5﹚／2]^n－[﹙1－√5﹚／2]^n﹜.1,1,2,3,5,8,.再问：捣乱自重，不要通项公式，是前n项和公式再答：唉，那还
PrivateFunctionbq(ByValsAsLong)AsLongSelectCasesCase1bq=1Case2bq=1CaseIs>=3bq=bq(s-1)+bq(s-2)EndSele