vb 用牛顿迭代法解方程fx=0的迭代公式为

symsxx0=2;f=x^3-3*x-1;eps=1e-6;maxcnt=1000;fx=diff(f,x);x1=x0;cnt=1;whilecnt

郁闷

你写的是π,哪里是e

m=0;%起始点e=0.00001;%精度h=0.000001;%步长f=inline('1-y-2*sin(y+3)','y');%x=1,c=2,k=3代入具体数值t=0;f0=feval(f,m

#includevoidmain(){floats,f0,h,x;intn,i;printf("inputn:");scanf("%d",&n);h=1.0/n;f0=4.0;s=0.0;for(i=

用^即可表示上标,10^(-5)可以表示10的-5次方.#include#includedoublef(doublex){returnx*x*x+9.2*x*x+16.7*x+4;}doublefdx

DimqAsSingle,mAsSingle,sAsSingle,rAsSinglePrivateSubCommand1_Click()Dimx0AsSingleDoq=Val(InputBox("请

设带表头结点的双向链表的定义为typedefintElemTyp*:typedefstructdnode｛file://双向链表结点定义ElemTypedata:file://数据structdnod

#include#includedoubleeps=10E-6;doublef(doublek)//原函数方程{returnlog10(k)+k-2.0;}doubleget(doublek){ret

首先整出来牛顿迭代法解方程：2x^3-4x^2+3x-6=0F(x0)=2x^3-4x^2+3x-6F(x0)=6x^2-8x+3....Y=0X=3DoX1=x'Z=((2*X1-4)*X1+3)*

#include#includeintmain(){doublex=1,x2;do{x2=x;x-=(2*x*x*x-4*x*x+3*x-6)/(6*x*x-8*x+3);}while(fabs(x-

x1=0Dox0=X1f1=x0^5-3*x0^2+2*x0+1f2=5*x0^4-6*x0+2X1=x0-f1/f2LoopWhileAbs(X1-x0)>0.000001PrintX1

善用百度!

用fsolve可解出来：先构造函数：functionoutput=solveproblem(X)c=X(1);m=X(2);y=X(3);output(1)=(1-c)*(1-y)*(1-m)*10.

#include#include#include#defineN100#definePS1e-5//定义精度#defineTA1e-5//定义精度floatNewton(float(*f)(float

wkihh,.>=-===236544458kjim=+3.14-------------:[325544]

c语言实现编辑本段问题已知f(x)=x*e^x-1针对f(x)=0类型.迭代方程是：g(x)=x-f(x)/f'(x)；其中f'(x)是导数.针对x*e^x-1=0的牛顿迭代法求出迭代方程,根据牛顿的

PROGRAMMAINREAD(*,*)XN=110X1=XF=X1**2-4*X1+1F1=2*X1-4X=X1-F/F1WRITE(*,100)N,X1,XN=N+1IF(ABS(X-X1).GT

Dima,bPrivateSubCommand1_Click()temp=(Val(a)+Val(b))/2Ifh(temp)=Abs(h(temp))Andh(a)Ifh(temp)=Abs(h(t

#include#includeusingnamespacestd;voidfun(double,double);intmain(){doublex0=0,epsilon;//将x初值赋为0,根据题目