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1、c语言上机实验报告实验四姓名游小锋班级单周上机的那班学号程序源：#include#includevoid main()int k,s;float cosx,x,p;printf(输入一个数：n);scanf(%f,&x);k=0;s=1;cosx=0,p=1;while(p=1e-8) cosx=cosx+s*p;k=k+1;s=-s;p=p*x*x/(2*k*(2*k-1);printf(cosx=%.4f,cosx);运行结果：程序源：#includevoid main()int n,x,m=0;printf(输入一整数:);scanf(%d,&n);while(n!=0) x=n%10;
2、m=m*10+x;n=n/10;printf(m=%d,m);运行结果：程序源：（最小公倍数）#includevoid main()int x,y,gcd,i,n,r,p,lcm;printf(输入两个整数:);scanf(%d%d,&x,&y);r=x%y;p=x*y;while(r!=0)x=y;y=r;r=x%y;gcd=y;lcm=p/gcd;printf(输入整数个数：);scanf(%d,&n);i=3;while(iscanf(%d,&x);i+;p=lcm*x,r=x%lcm;while(r!=0)x=lcm;lcm=r;r=x%lcm;lcm=p/lcm;printf(%d,
3、lcm)；运行结果：最大公约数：#includevoid main()int x,y,gcd,i,n,r,p,lcm;printf(输入两个整数:);scanf(%d%d,&x,&y);r=x%y;p=x*y;while(r!=0)x=y;y=r;r=x%y;gcd=y;lcm=p/gcd;printf(输入整数个数：);scanf(%d,&n);i=3;while(iscanf(%d,&x);i+;p=lcm*x,r=x%gcd;while(r!=0)x=gcd;gcd=r;r=x%gcd;printf(%d,gcd);运行结果：程序源：#include#includevoid main()
4、float x,y,f,g;x=1.5;while(fabs(y-x)=1e-6)y=x;f=2*y*y*y-4*y*y+3*y-6;g=6*y*y-8*y+3;x=y-f/g;printf(x=%f,x);运行结果：程序源：#include int i, j, t;for ( i = 1; i t=0;for ( j = 1; j if ( i % j = 0 ) t=t+j;if ( t = i )printf(%dn, i); 程序源：程序源：#includevoid main()int x,y,z,n;n=0;for(x=0;xfor(y=0;yfor(z=0;zif(3*x+2*y+
5、z=45)printf(%d %d %d ,x,y,z);n=n+1;printf(%d,n);运行结果：程序源：#include #include #include void main()int i , j , k;for(i=0 ; ifor( j=0 ; jfor( k=0 ; kfor(k=0;kprintf(n);for( i=3 ; i=0; i-)for(j=0 ; jfor ( k=0 ; kfor(k=0;kprintf( n );运行结果：程序源：#includevoid main ()int x,y,z,m,n;n=0;printf(输入金额:n);scanf(%d,&m
6、);for(x=1;xfor(y=1;yfor(z=1;zif(5*x+2*y+z=m) printf(%d %d %d ,x,y,z);n=n+1;printf(%d,n);程序源：选做题程序源：#includevoid main()int a,b,c,n,i;printf(输入一个数为阶梯数:n);scanf(%d,&n);a=1;b=2;if(n=1)printf(%d,a);if(n=2)printf(%d,b);if(n=3)for(i=3;ic=a+b; /到达第n阶的方式等于从第n-1阶迈一步与从第n-2阶迈两步（类似Fibonacci 数列）:a=b;b=c;printf(%d,c);运行结果：