c語言分段函數(shù)怎么寫

#include?"stdio.h"

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#include?"math.h"

int?main(int?argc,char?*argv[]){

double?x,y;

printf("Input?x(R:)...\nx=");

scanf("%lf",x);

if(x5)

y=-x+3.5;

else?if(x=5??x10)

y=20-3.5*pow(x+3,7);//這里看著像7,是幾就把7改成幾

else

y=-3.5+sin(x);

printf("y?=?%g\t(x==%g)\n",y,x);

return?0;

}

運(yùn)行樣例：

如何用C語言運(yùn)行一個(gè)分段函數(shù)呀？

#include stdio.h

#include math.h

int main()

{

float x,y;

printf("please input x:");

scanf("%f",x);

if(x0 x!=-3)

?y = pow(x,2)+x-6;

else if(x=0 x10 x!=2 x!=3)

?y = pow(x,2)-5*x+6;

else

?y = pow(x,2)-x-1;

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

return 0;

}

怎么用c語言編程一個(gè)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");

}