用迭代法求ax3 bx2 cx d=0

-20.5558285905308换成弧度是-0.358766883260444选不同初值得到另外一个结果0.758766883260445换成弧度43.474140786708两边同时平方相减得到f

#include"stdio.h"#include"math.h"main(){floatx,f,f1;//f代表f(x)=2x^3-4x^2+5x-18,f1代表f‘(x)=2*x^2-4*2x^+

你写的是π,哪里是e

#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

f(x)=x^2-3f'(x)=2xNewtonIteration:x

publicstaticdoublesquareRoot(doublen){doublex=1;doubletemp=1;do{temp=x;//保存上一次计算的值x=0.5*(x+n/x);//这个

#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-

用迭代法求平方根的迭代公式为：要求前后两次求出的得差的绝对值少于0.00001.#include"math.h"main(){floatx0,x1,a;scanf("%f",&a);x1=a/2;do

(150.000000+150/150.000000)/2=75.500000(75.500000+150/75.500000)/2=38.743377(38.743377+150/38.743377

y=x^2+10cosxy'=2x-10sinxx(n+1)=(2xn-10sinxn)/(xn^2+10cosxn)y是偶函数,所以两个解是相反数假设x1=2x2=2.2452x3=1.8828x4

C++行么?这两天忙考试,过两天可以帮你改成C的,实验报告我也,有电子档的2简单迭代法#include#includeusingnamespacestd;doublef(double);//申明函数i

x=0:0.01:1;y=1-x-sin(x);plot(x,y,'b');观察初值,大概是在区间[0.40.6]

#include#include#defineeps1e-6voidmain(){doublea,x0,x1,dif;intn=0,flag=0;printf("Typea:");scanf("%lf

你是不复制放这的啊?格式都没看懂

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

我也是做到这题不会啊!大家共同努力!

functiony=G(x)G=[521;-142;2-310];functiony=fun(delta)%误差P=[-12203];N=length(P);fork=1:10X=P;forj=1:N