ldcf.net
当前位置:首页 >> C语言解方程组.. >>

C语言解方程组..

#include int x,y,z; int main() { for(x = 0;x

#include #include #include int main() { double a, b, c, d, e, f; scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f); assert(fabs(a*e-d*b) >1.0e-8); assert(fabs(a*c-d*b)); printf("x=%lf\ny=%lf\n", (c*e-b*f)/(a*e-d*b), (d*c...

/* 1 -2 1 -1 -2 4 交点坐标为(1.22,0.05),(-1.22,4.95) Press any key to continue */ #include #include double Value(double x,double a,double b,double c) {return a * x * x + b * x + c;}int main() {double x1,y1,x2,y2;double a,b,c,d,...

#include #include double x1,x2,p; float file1(float a,float b) { x1=(-b+sqrt(p))/2*a; x2=(-b-sqrt(p))/2*a; return 0; } float file2(float a,float b) { x1=x2=(-b+sqrt(p))/2*a; return 0; } void main() { float a,b,c; printf("请依次...

来,给你个LU分解法解方程的c程序 #include #include #include #include #define N 20 /*以下程序为不选主元的三角分解法(Doolittle)*/ main() { int i,j,k,s; float a[N][N]={0},L[N][N]={0},U[N][N]={0},sigma1,sigma2,b[N],y[N],x[N]; /*为...

#include#include int main(){int a,b,c;float x1,x2;printf("a= b= c=\n");scanf("%d%d%d",&a,&b,&c);if(b*b-4*a*c>=0){ if(b*b-4*a*c==0){ x1=x2=-b*1.0/(2*a); printf("%f\n",x1); }else{ x1=(-b+sqrt(b*b-4*a*c))/(2.0*a); x2=(-b-sqrt(b*b-...

#include #include #include #include #define N 20/*以下程序为不选主元的三角分解法(Doolittle)*/main(){int i,j,k,s;float a[N][N]={0},L[N][N]={0},U[N][N]={0},sigma1,sigma2,b[N],y[N],x[N];/*为L主对角线元素赋1*/for(i=0;i

#include int fun(int m,int n) { int a=0; int i,j; for(i=0;i

两个方程,三个未知数,如果xyz和你均为正整数,那么用穷举法吧。 否则,自己设一个值域,画出曲线或曲线族。

#include "stdlib.h" #include "math.h" #include "stdio.h" int rgauss(n,a,b) int n; double a[],b[]; { int *js,l,k,i,j,is,p,q; double d,t; js=malloc(n*sizeof(int)); l=1; for (k=0;k

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com