C語言計算分段函數(shù)

1. 代碼如下，3）需要實際運(yùn)行時輸入測試

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int main(void)

{

double x, y, f;

printf("Please input 2 double number in the form of x y:\n");

scanf("%lf%lf", x, y);

if(x=0 y0)

f = 2*x*x + 3*x +1/(x+y);

else if(x=0 y=0)

f = 2*x*x + 3*x +1/(1+y*y);

else

f = 3*sin(x+y)/(2*x*x) + 3*x + 1;

printf("x=%lf, y=%lf, f(x, y)=%lf\n", x, y, f);

return 0;

}

2.代碼如下

#include stdio.h

#includemath.h

int main(void)

{

double x, y, f;

printf("Please input 2 double number in the form of x y:\n");

scanf("%lf%lf", x, y);

if(x=0)

{

if(y0)

f = 2*x*x + 3*x +1/(x+y);

else

f = 2*x*x + 3*x +1/(1+y*y);

}

else

f = 3*sin(x+y)/(2*x*x) + 3*x + 1;

printf("x=%lf, y=%lf, f(x, y)=%lf\n", x, y, f);

return 0;

}

3.代碼如下

#include stdio.h

int main(void)

{

int score = 0;

printf("Please input a score between 0-100:\n");

scanf("%d", score);

if(score0 || score100)

printf("Wrong input of score!\n");

else if(score=90 score=100)

printf("A\n");

else if(score=80 score=89)

printf("B\n");

else if(score=70 score=79)

printf("C\n");

else if(score=60 score=69)

printf("D\n");

else

printf("E\n");

return 0;

}

用C語言求分段函數(shù)值

#include?stdio.h?

int?main()?

{double?x,y;

scanf("%lf",x);

if(x0)y=x*x-1;

else?if(x1)y=x*x;

else?y=x*x+1;

printf("%g",y);

return?0;?

}

怎么用c語言編程一個分段函數(shù)？

#include

int?main()

{

int?x,y;

scanf("%d",x);

if(0xx10)?y=3*x+2;

else

{if(x=0)?y=0;

else

{if?(x0)?y=x*x;

else?printf("go?die\n");

}

}

printf("%d",y);

return?0;

}該程序的分段函數(shù)如下:

f(x)=3x+2? (0x10)

f(x)=1???????? (x=0)

f(x)?=?x*x??? (x0)

#include stdio.h

#include math.h

void main()

{

float x;

double y;

printf("Please input the value of x:");

scanf("%f",x);

if(x=-10x=4)

{

y=fabs(x-2);

printf("y=%.2f\n",y);

}

else if(x=5x=7)

{

y=x+10;

printf("y=%.2f\n",y);

}

else if(x=8x=12)

{

y=pow(x,4);

printf("y=%.2f\n",y);

}

else

printf("No answer\n");

}

c語言求分段函數(shù)

幫你改了下代碼，VC6測試通過，自己看看吧。

#includestdio.h

int main()

{

float x,y;//根據(jù)給定的測試用例，x，y應(yīng)該為float型

scanf("%f",x);//x為float型，所以改為%f

if(x20)

{

y=x+100;

}

else if(x=20x=100)

{

y=x;

}

else

y=x-100;

printf("x=%f,y=%f\n",x,y);

return 0;//缺少分號

}

,心弟人編程:用遞歸函數(shù)求分段函數(shù)的值,當(dāng)n1,y=x,否則y=xx^(n-1)？

/*

copyright\c)2017,csdn學(xué)院

*All cights reserved

*文件名稱：a.c

*作者：王琦

*完成日期：2017年7月7日

*版本號：6.0

*問題描述:求解分段函數(shù)的值

*程序輸出:分段函數(shù)的值

*/

#include stdio.h

double f(double n)

{

double j;

if(n0.3)

j=0;

else if(n0.8)

j=(n-0.3)/(0.8-0.3);

else

j=1;

return(j);

}

int main( )

{

double x;

printf("請輸入x的值：");

scanf("%lf", x);

printf("解得：f(%.2f)=%.2f\n", x, f(x));

}