C語(yǔ)言編函數(shù)求值~

#include stdio.h

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#include stdlib.h

//高精度計(jì)算s=1/n+1/(n+1)+1/(n+2)+……+1/m表達(dá)式的值

//求得的s是個(gè)分?jǐn)?shù),分子放在result[0]中,分母放在result[1]中

void func(double *result)

{

int m, n, i;

double *numerator; //分子

printf("Please input n and m (Separate by space and 0nm): \n");

while(scanf("%d%d", n, m))

{

if((0 n) (n m))

break;

printf("Value Invalid, please try again!\n");

printf("Please input n and m (Separate by space and 0nm): \n");

}

numerator = (double *)calloc(m, sizeof(double));

if(!numerator)

{

printf("malloc failed!\n");

exit(0);

}

result[1] = 1;

//下面兩個(gè)for循環(huán)是進(jìn)行通分

for(i=n; i=m; i++)

result[1] *= i;

for(i=n; i=m; i++)

numerator[i-n] = result[1]/i;

result[0] = 0;

//對(duì)分母進(jìn)行相加

for(i=n; i=m; i++)

result[0] += numerator[i-n];

for(i=n; im; i++)

printf("1/%d + ", i);

printf("1/%d = ", m);

free(numerator);

}

int main()

{

double result[2];

func(result);

printf("%g/%g\n", result[0], result[1]);

return 0;

}

//如果你還想對(duì)結(jié)果化為最簡(jiǎn)分?jǐn)?shù)的話,可以告訴我,我會(huì)改程序

怎樣用c語(yǔ)言求函數(shù)的一個(gè)值

void fun(double *in, double *out)

{

while (1)

{

*out = (*in);

if (50 == *in)

{

break;

}

*in = *out;

}

}

用C語(yǔ)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;?

}

c語(yǔ)言求函數(shù)值

就寫(xiě)個(gè)函數(shù)嘛

輸入一個(gè)x，然后調(diào)用函數(shù)

int fun(int x)

{

return 4 *x * x * x + 6 * x * x - 3 * x;

}

就可以了

C語(yǔ)言入門(mén)題，求函數(shù)值

#include?stdio.h

#include?math.h

#define?PI?3.1415926

int?main()

{

double?x,y;

scanf("%lf",x);

y=abs(pow(x,2)-7*exp(x))+sqrt(3*pow(x,2)+PI*sin(67*PI/180)/2);

printf("%lf",y);

return?0;

}

如何用C語(yǔ)言計(jì)算一個(gè)函數(shù)的值，比如說(shuō)F(x)=ax平方+bx+c，求幫助啊謝謝了

#includestdio.h

float f(float a,float b,float c,float x)

{

float y;

y=a*x*x+b*x+c;

return y;

}

void main()

{

float a,b,c,x;

printf("請(qǐng)輸入a,b,c,x的值\n");

scanf("%f%f%f%f",a,b,c,x);

printf("%f\n",f(a,b,c,x));

}

也可以把a(bǔ)，b，c改為定植 望采納 謝謝